612042431 has 32 divisors (see below), whose sum is σ = 827947008. Its totient is φ = 436919040.

The previous prime is 612042427. The next prime is 612042481. The reversal of 612042431 is 134240216.

It is a cyclic number.

It is not a de Polignac number, because 612042431 - 2² = 612042427 is a prime.

It is a super-2 number, since 2×612042431² = 749191874688779522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612042397 and 612042406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612042481) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 134906 + ... + 139368.

It is an arithmetic number, because the mean of its divisors is an integer number (25873344).

Almost surely, 2^612042431 is an apocalyptic number.

612042431 is a deficient number, since it is larger than the sum of its proper divisors (215904577).

612042431 is a wasteful number, since it uses less digits than its factorization.

612042431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 612042431 is about 24739.4913246008. The cubic root of 612042431 is about 849.0380957220.

Adding to 612042431 its reverse (134240216), we get a palindrome (746282647).

The spelling of 612042431 in words is "six hundred twelve million, forty-two thousand, four hundred thirty-one".