1431612 has 144 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 342144.

The previous prime is 1431607. The next prime is 1431613. The reversal of 1431612 is 2161341.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (144) is a multiple of the sum of its prime factors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62233 + ... + 62255.

2^1431612 is an apocalyptic number.

1431612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 1196×1197.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1431612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446080).

1431612 is an abundant number, since it is smaller than the sum of its proper divisors (3460548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1431612 is a wasteful number, since it uses less digits than its factorization.

1431612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 67 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1431612 is about 1196.4998955286. The cubic root of 1431612 is about 112.7046349554.

Adding to 1431612 its reverse (2161341), we get a palindrome (3592953).

It can be divided in two parts, 14 and 31612, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 1431612 in words is "one million, four hundred thirty-one thousand, six hundred twelve".