431133142 has 32 divisors (see below), whose sum is σ = 744837120. Its totient is φ = 185101920.

The previous prime is 431133133. The next prime is 431133149. The reversal of 431133142 is 241331134.

It is a super-2 number, since 2×431133142² = 371751572261584328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431133149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158748 + ... + 161440.

It is an arithmetic number, because the mean of its divisors is an integer number (23276160).

Almost surely, 2^431133142 is an apocalyptic number.

431133142 is a deficient number, since it is larger than the sum of its proper divisors (313703978).

431133142 is a wasteful number, since it uses less digits than its factorization.

431133142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108.

The product of its digits is 864, while the sum is 22.

The square root of 431133142 is about 20763.7458566608. The cubic root of 431133142 is about 755.4466558719.

Adding to 431133142 its reverse (241331134), we get a palindrome (672464276).

The spelling of 431133142 in words is "four hundred thirty-one million, one hundred thirty-three thousand, one hundred forty-two".