612708131 has 8 divisors (see below), whose sum is σ = 700387584. Its totient is φ = 525066120.

The previous prime is 612708127. The next prime is 612708133. The reversal of 612708131 is 131807216.

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 612708131 - 2² = 612708127 is a prime.

It is a super-2 number, since 2×612708131² = 750822507587026322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612708094 and 612708103.

It is not an unprimeable number, because it can be changed into a prime (612708133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59666 + ... + 69176.

It is an arithmetic number, because the mean of its divisors is an integer number (87548448).

Almost surely, 2^612708131 is an apocalyptic number.

612708131 is a deficient number, since it is larger than the sum of its proper divisors (87679453).

612708131 is an equidigital number, since it uses as much as digits as its factorization.

612708131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 612708131 is about 24752.9418655642. The cubic root of 612708131 is about 849.3458085192.

The spelling of 612708131 in words is "six hundred twelve million, seven hundred eight thousand, one hundred thirty-one".