113288779 has 4 divisors (see below), whose sum is σ = 113547280. Its totient is φ = 113030280.

The previous prime is 113288737. The next prime is 113288797. The reversal of 113288779 is 977882311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977882311 = 7 ⋅139697473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113288779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113238779) 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, 128592 + ... + 129469.

It is an arithmetic number, because the mean of its divisors is an integer number (28386820).

Almost surely, 2^113288779 is an apocalyptic number.

113288779 is a deficient number, since it is larger than the sum of its proper divisors (258501).

113288779 is an equidigital number, since it uses as much as digits as its factorization.

113288779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258500.

The product of its digits is 169344, while the sum is 46.

The square root of 113288779 is about 10643.7201673099. The cubic root of 113288779 is about 483.8702994107.

The spelling of 113288779 in words is "one hundred thirteen million, two hundred eighty-eight thousand, seven hundred seventy-nine".