612306431 has 8 divisors (see below), whose sum is σ = 668763984. Its totient is φ = 555981120.

The previous prime is 612306413. The next prime is 612306439. The reversal of 612306431 is 134603216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 612306431 - 2¹⁴ = 612290047 is a prime.

It is a super-2 number, since 2×612306431² = 749838330887915522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 612306431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612306439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23246 + ... + 42011.

It is an arithmetic number, because the mean of its divisors is an integer number (83595498).

Almost surely, 2^612306431 is an apocalyptic number.

612306431 is a deficient number, since it is larger than the sum of its proper divisors (56457553).

612306431 is a wasteful number, since it uses less digits than its factorization.

612306431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66121.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 612306431 is about 24744.8263481480. The cubic root of 612306431 is about 849.1601536196.

Adding to 612306431 its reverse (134603216), we get a palindrome (746909647).

The spelling of 612306431 in words is "six hundred twelve million, three hundred six thousand, four hundred thirty-one".