113772989 has 4 divisors (see below), whose sum is σ = 124116000. Its totient is φ = 103429980.

The previous prime is 113772979. The next prime is 113773021. The reversal of 113772989 is 989277311.

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 not a de Polignac number, because 113772989 - 2⁸ = 113772733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113772979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5171489 + ... + 5171510.

It is an arithmetic number, because the mean of its divisors is an integer number (31029000).

Almost surely, 2^113772989 is an apocalyptic number.

It is an amenable number.

113772989 is a deficient number, since it is larger than the sum of its proper divisors (10343011).

113772989 is a wasteful number, since it uses less digits than its factorization.

113772989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343010.

The product of its digits is 190512, while the sum is 47.

The square root of 113772989 is about 10666.4421903463. The cubic root of 113772989 is about 484.5586930557.

The spelling of 113772989 in words is "one hundred thirteen million, seven hundred seventy-two thousand, nine hundred eighty-nine".