612764531 has 2 divisors, whose sum is σ = 612764532. Its totient is φ = 612764530.

The previous prime is 612764483. The next prime is 612764533. The reversal of 612764531 is 135467216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612764531 - 2²² = 608570227 is a prime.

It is a super-2 number, since 2×612764531² = 750960740903299922, which contains 22 as substring.

Together with 612764533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 612764491 and 612764500.

It is not a weakly prime, because it can be changed into another prime (612764533) 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 as a sum of consecutive naturals, namely, 306382265 + 306382266.

It is an arithmetic number, because the mean of its divisors is an integer number (306382266).

Almost surely, 2^612764531 is an apocalyptic number.

612764531 is a deficient number, since it is larger than the sum of its proper divisors (1).

612764531 is an equidigital number, since it uses as much as digits as its factorization.

612764531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 612764531 is about 24754.0810978715. The cubic root of 612764531 is about 849.3718685802.

The spelling of 612764531 in words is "six hundred twelve million, seven hundred sixty-four thousand, five hundred thirty-one".