113512279 has 2 divisors, whose sum is σ = 113512280. Its totient is φ = 113512278.

The previous prime is 113512261. The next prime is 113512319. The reversal of 113512279 is 972215311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113512279 - 2⁹ = 113511767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113512279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113512879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56756139 + 56756140.

It is an arithmetic number, because the mean of its divisors is an integer number (56756140).

Almost surely, 2^113512279 is an apocalyptic number.

113512279 is a deficient number, since it is larger than the sum of its proper divisors (1).

113512279 is an equidigital number, since it uses as much as digits as its factorization.

113512279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 31.

The square root of 113512279 is about 10654.2141427700. The cubic root of 113512279 is about 484.1882890455.

The spelling of 113512279 in words is "one hundred thirteen million, five hundred twelve thousand, two hundred seventy-nine".