9971456113 has 4 divisors (see below), whose sum is σ = 9971759088. Its totient is φ = 9971153140.

The previous prime is 9971456021. The next prime is 9971456171. The reversal of 9971456113 is 3116541799.

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 a de Polignac number, because none of the positive numbers 2^k-9971456113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9971456713) 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, 95131 + ... + 170272.

It is an arithmetic number, because the mean of its divisors is an integer number (2492939772).

Almost surely, 2^9971456113 is an apocalyptic number.

It is an amenable number.

9971456113 is a deficient number, since it is larger than the sum of its proper divisors (302975).

9971456113 is a wasteful number, since it uses less digits than its factorization.

9971456113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302974.

The product of its digits is 204120, while the sum is 46.

The square root of 9971456113 is about 99857.1785752031. The cubic root of 9971456113 is about 2152.3828718849.

The spelling of 9971456113 in words is "nine billion, nine hundred seventy-one million, four hundred fifty-six thousand, one hundred thirteen".