118552381 has 4 divisors (see below), whose sum is σ = 124792000. Its totient is φ = 112312764.

The previous prime is 118552367. The next prime is 118552387. The reversal of 118552381 is 183255811.

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 118552381 - 2⁵ = 118552349 is a prime.

It is a super-2 number, since 2×118552381² = 28109334081538322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118552387) 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, 3119781 + ... + 3119818.

It is an arithmetic number, because the mean of its divisors is an integer number (31198000).

Almost surely, 2^118552381 is an apocalyptic number.

It is an amenable number.

118552381 is a deficient number, since it is larger than the sum of its proper divisors (6239619).

118552381 is an equidigital number, since it uses as much as digits as its factorization.

118552381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239618.

The product of its digits is 9600, while the sum is 34.

The square root of 118552381 is about 10888.1762017337. The cubic root of 118552381 is about 491.2509767822.

The spelling of 118552381 in words is "one hundred eighteen million, five hundred fifty-two thousand, three hundred eighty-one".