1556364113 has 4 divisors (see below), whose sum is σ = 1570909680. Its totient is φ = 1541818548.

The previous prime is 1556364107. The next prime is 1556364137. The reversal of 1556364113 is 3114636551.

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 an emirpimes, since its reverse is a distinct semiprime: 3114636551 = 13 ⋅239587427.

It is a cyclic number.

It is not a de Polignac number, because 1556364113 - 2⁶ = 1556364049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1556364143) 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, 7272623 + ... + 7272836.

It is an arithmetic number, because the mean of its divisors is an integer number (392727420).

Almost surely, 2^1556364113 is an apocalyptic number.

It is an amenable number.

1556364113 is a deficient number, since it is larger than the sum of its proper divisors (14545567).

1556364113 is a wasteful number, since it uses less digits than its factorization.

1556364113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14545566.

The product of its digits is 32400, while the sum is 35.

The square root of 1556364113 is about 39450.7808921446. The cubic root of 1556364113 is about 1158.8762683238.

The spelling of 1556364113 in words is "one billion, five hundred fifty-six million, three hundred sixty-four thousand, one hundred thirteen".