118638763 has 12 divisors (see below), whose sum is σ = 124135000. Its totient is φ = 113323392.

The previous prime is 118638731. The next prime is 118638769. The reversal of 118638763 is 367836811.

It is not a de Polignac number, because 118638763 - 2⁵ = 118638731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118638769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94363 + ... + 95611.

Almost surely, 2^118638763 is an apocalyptic number.

118638763 is a deficient number, since it is larger than the sum of its proper divisors (5496237).

118638763 is an equidigital number, since it uses as much as digits as its factorization.

118638763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1339 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 118638763 is about 10892.1422594456. The cubic root of 118638763 is about 491.3702628424.

The spelling of 118638763 in words is "one hundred eighteen million, six hundred thirty-eight thousand, seven hundred sixty-three".