118962591 has 16 divisors (see below), whose sum is σ = 182144640. Its totient is φ = 68303520.

The previous prime is 118962589. The next prime is 118962637. The reversal of 118962591 is 195269811.

It is not a de Polignac number, because 118962591 - 2¹ = 118962589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118962091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94240 + ... + 95493.

It is an arithmetic number, because the mean of its divisors is an integer number (11384040).

Almost surely, 2^118962591 is an apocalyptic number.

118962591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

118962591 is a deficient number, since it is larger than the sum of its proper divisors (63182049).

118962591 is a wasteful number, since it uses less digits than its factorization.

118962591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189766.

The product of its digits is 38880, while the sum is 42.

The square root of 118962591 is about 10906.9973411567. The cubic root of 118962591 is about 491.8169265658.

The spelling of 118962591 in words is "one hundred eighteen million, nine hundred sixty-two thousand, five hundred ninety-one".