612406013 has 4 divisors (see below), whose sum is σ = 614022240. Its totient is φ = 610789788.

The previous prime is 612406009. The next prime is 612406031. The reversal of 612406013 is 310604216.

It is a happy number.

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 612406013 - 2² = 612406009 is a prime.

It is a super-2 number, since 2×612406013² = 750082249517112338, 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 612406013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612406213) 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 3 ways as a sum of consecutive naturals, for example, 807545 + ... + 808302.

It is an arithmetic number, because the mean of its divisors is an integer number (153505560).

Almost surely, 2^612406013 is an apocalyptic number.

It is an amenable number.

612406013 is a deficient number, since it is larger than the sum of its proper divisors (1616227).

612406013 is a wasteful number, since it uses less digits than its factorization.

612406013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616226.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 612406013 is about 24746.8384445367. The cubic root of 612406013 is about 849.2061853004.

The spelling of 612406013 in words is "six hundred twelve million, four hundred six thousand, thirteen".