157640154 has 24 divisors (see below), whose sum is σ = 366755328. Its totient is φ = 45039960.

The previous prime is 157640149. The next prime is 157640191. The reversal of 157640154 is 451046751.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267802 + ... + 268389.

It is an arithmetic number, because the mean of its divisors is an integer number (15281472).

Almost surely, 2^157640154 is an apocalyptic number.

157640154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

157640154 is an abundant number, since it is smaller than the sum of its proper divisors (209115174).

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

157640154 is a wasteful number, since it uses less digits than its factorization.

157640154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536210 (or 536203 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 157640154 is about 12555.4830253559. The cubic root of 157640154 is about 540.2012898415.

The spelling of 157640154 in words is "one hundred fifty-seven million, six hundred forty thousand, one hundred fifty-four".