118241591 has 8 divisors (see below), whose sum is σ = 128950080. Its totient is φ = 107763552.

The previous prime is 118241561. The next prime is 118241593. The reversal of 118241591 is 195142811.

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

It is a de Polignac number, because none of the positive numbers 2^k-118241591 is a prime.

It is a super-2 number, since 2×118241591² = 27962147684422562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118241593) 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, 56540 + ... + 58593.

It is an arithmetic number, because the mean of its divisors is an integer number (16118760).

Almost surely, 2^118241591 is an apocalyptic number.

118241591 is a deficient number, since it is larger than the sum of its proper divisors (10708489).

118241591 is a wasteful number, since it uses less digits than its factorization.

118241591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115225.

The product of its digits is 2880, while the sum is 32.

The square root of 118241591 is about 10873.8949323598. The cubic root of 118241591 is about 490.8213228187.

The spelling of 118241591 in words is "one hundred eighteen million, two hundred forty-one thousand, five hundred ninety-one".