431607142 has 4 divisors (see below), whose sum is σ = 647410716. Its totient is φ = 215803570.

The previous prime is 431607107. The next prime is 431607151. The reversal of 431607142 is 241706134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241706134 = 2 ⋅120853067.

It is a self number, because there is not a number n which added to its sum of digits gives 431607142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107901784 + ... + 107901787.

It is an arithmetic number, because the mean of its divisors is an integer number (161852679).

Almost surely, 2^431607142 is an apocalyptic number.

431607142 is a deficient number, since it is larger than the sum of its proper divisors (215803574).

431607142 is a wasteful number, since it uses less digits than its factorization.

431607142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215803573.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 431607142 is about 20775.1568465800. The cubic root of 431607142 is about 755.7234076311.

The spelling of 431607142 in words is "four hundred thirty-one million, six hundred seven thousand, one hundred forty-two".