157911918 has 8 divisors (see below), whose sum is σ = 315823848. Its totient is φ = 52637304.

The previous prime is 157911913. The next prime is 157911937. The reversal of 157911918 is 819119751.

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

157911918 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 157911918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157911913) 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, 13159321 + ... + 13159332.

It is an arithmetic number, because the mean of its divisors is an integer number (39477981).

Almost surely, 2^157911918 is an apocalyptic number.

157911918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157911918 is a wasteful number, since it uses less digits than its factorization.

157911918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26318658.

The product of its digits is 22680, while the sum is 42.

The square root of 157911918 is about 12566.3008876917. The cubic root of 157911918 is about 540.5115385893.

The spelling of 157911918 in words is "one hundred fifty-seven million, nine hundred eleven thousand, nine hundred eighteen".