1071612 has 54 divisors (see below), whose sum is σ = 2905448. Its totient is φ = 332928.

The previous prime is 1071601. The next prime is 1071641. The reversal of 1071612 is 2161701.

It is a super-2 number, since 2×1071612² = 2296704557088, which contains 22 as substring.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 10353 + ... + 10455.

2^1071612 is an apocalyptic number.

1071612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452724).

1071612 is an abundant number, since it is smaller than the sum of its proper divisors (1833836).

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

1071612 is a wasteful number, since it uses less digits than its factorization.

1071612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1071612 is about 1035.1869396394. The cubic root of 1071612 is about 102.3322499034.

The spelling of 1071612 in words is "one million, seventy-one thousand, six hundred twelve".