118238137 has 8 divisors (see below), whose sum is σ = 121347072. Its totient is φ = 115140000.

The previous prime is 118238119. The next prime is 118238149. The reversal of 118238137 is 731832811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118238137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118238117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22512 + ... + 27262.

It is an arithmetic number, because the mean of its divisors is an integer number (15168384).

Almost surely, 2^118238137 is an apocalyptic number.

It is an amenable number.

118238137 is a deficient number, since it is larger than the sum of its proper divisors (3108935).

118238137 is an equidigital number, since it uses as much as digits as its factorization.

118238137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399.

The product of its digits is 8064, while the sum is 34.

The square root of 118238137 is about 10873.7361104636. The cubic root of 118238137 is about 490.8165435829.

The spelling of 118238137 in words is "one hundred eighteen million, two hundred thirty-eight thousand, one hundred thirty-seven".