118513783 has 4 divisors (see below), whose sum is σ = 125485200. Its totient is φ = 111542368.

The previous prime is 118513771. The next prime is 118513793. The reversal of 118513783 is 387315811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118513783 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 (118513723) 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, 3485683 + ... + 3485716.

It is an arithmetic number, because the mean of its divisors is an integer number (31371300).

Almost surely, 2^118513783 is an apocalyptic number.

118513783 is a deficient number, since it is larger than the sum of its proper divisors (6971417).

118513783 is an equidigital number, since it uses as much as digits as its factorization.

118513783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971416.

The product of its digits is 20160, while the sum is 37.

The square root of 118513783 is about 10886.4035842881. The cubic root of 118513783 is about 491.1976575568.

The spelling of 118513783 in words is "one hundred eighteen million, five hundred thirteen thousand, seven hundred eighty-three".