612444113 has 4 divisors (see below), whose sum is σ = 612493680. Its totient is φ = 612394548.

The previous prime is 612444073. The next prime is 612444137. The reversal of 612444113 is 311444216.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 612444113 - 2²² = 608249809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612443113) 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, 10406 + ... + 36512.

It is an arithmetic number, because the mean of its divisors is an integer number (153123420).

Almost surely, 2^612444113 is an apocalyptic number.

It is an amenable number.

612444113 is a deficient number, since it is larger than the sum of its proper divisors (49567).

612444113 is a wasteful number, since it uses less digits than its factorization.

612444113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49566.

The product of its digits is 2304, while the sum is 26.

The square root of 612444113 is about 24747.6082278672. The cubic root of 612444113 is about 849.2237956679.

Adding to 612444113 its reverse (311444216), we get a palindrome (923888329).

The spelling of 612444113 in words is "six hundred twelve million, four hundred forty-four thousand, one hundred thirteen".