112971913 has 4 divisors (see below), whose sum is σ = 113401728. Its totient is φ = 112542100.

The previous prime is 112971899. The next prime is 112971917. The reversal of 112971913 is 319179211.

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-112971913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112971917) 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, 214513 + ... + 215038.

It is an arithmetic number, because the mean of its divisors is an integer number (28350432).

Almost surely, 2^112971913 is an apocalyptic number.

It is an amenable number.

112971913 is a deficient number, since it is larger than the sum of its proper divisors (429815).

112971913 is an equidigital number, since it uses as much as digits as its factorization.

112971913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429814.

The product of its digits is 3402, while the sum is 34.

The square root of 112971913 is about 10628.8246292805. The cubic root of 112971913 is about 483.4187536171.

The spelling of 112971913 in words is "one hundred twelve million, nine hundred seventy-one thousand, nine hundred thirteen".