612655013 has 4 divisors (see below), whose sum is σ = 626902848. Its totient is φ = 598407180.

The previous prime is 612655009. The next prime is 612655039. The reversal of 612655013 is 310556216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612655013 - 2² = 612655009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612655003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7123853 + ... + 7123938.

It is an arithmetic number, because the mean of its divisors is an integer number (156725712).

Almost surely, 2^612655013 is an apocalyptic number.

It is an amenable number.

612655013 is a deficient number, since it is larger than the sum of its proper divisors (14247835).

612655013 is a wasteful number, since it uses less digits than its factorization.

612655013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14247834.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 612655013 is about 24751.8688789352. The cubic root of 612655013 is about 849.3212634696.

The spelling of 612655013 in words is "six hundred twelve million, six hundred fifty-five thousand, thirteen".