612611013 has 16 divisors (see below), whose sum is σ = 934940160. Its totient is φ = 349524336.

The previous prime is 612611011. The next prime is 612611071. The reversal of 612611013 is 310116216.

It is not a de Polignac number, because 612611013 - 2¹ = 612611011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612611011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8295 + ... + 35972.

It is an arithmetic number, because the mean of its divisors is an integer number (58433760).

Almost surely, 2^612611013 is an apocalyptic number.

It is an amenable number.

612611013 is a deficient number, since it is larger than the sum of its proper divisors (322329147).

612611013 is a wasteful number, since it uses less digits than its factorization.

612611013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44936.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 612611013 is about 24750.9800412024. The cubic root of 612611013 is about 849.3009306398.

Adding to 612611013 its reverse (310116216), we get a palindrome (922727229).

The spelling of 612611013 in words is "six hundred twelve million, six hundred eleven thousand, thirteen".