1431142 has 4 divisors (see below), whose sum is σ = 2146716. Its totient is φ = 715570.

The previous prime is 1431139. The next prime is 1431149. The reversal of 1431142 is 2411341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2411341 = 53 ⋅45497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357784 + ... + 357787.

It is an arithmetic number, because the mean of its divisors is an integer number (536679).

2^1431142 is an apocalyptic number.

1431142 is a deficient number, since it is larger than the sum of its proper divisors (715574).

1431142 is an equidigital number, since it uses as much as digits as its factorization.

1431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715573.

The product of its digits is 96, while the sum is 16.

The square root of 1431142 is about 1196.3034732040. The cubic root of 1431142 is about 112.6922999148.

Adding to 1431142 its reverse (2411341), we get a palindrome (3842483).

It can be divided in two parts, 143 and 1142, that multiplied together give a triangular number (163306 = T₅₇₁).

The spelling of 1431142 in words is "one million, four hundred thirty-one thousand, one hundred forty-two".