157317040 has 20 divisors (see below), whose sum is σ = 365762304. Its totient is φ = 62926784.

The previous prime is 157316977. The next prime is 157317047. The reversal of 157317040 is 40713751.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (157317047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983152 + ... + 983311.

Almost surely, 2^157317040 is an apocalyptic number.

157317040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157317040 is an abundant number, since it is smaller than the sum of its proper divisors (208445264).

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

157317040 is a wasteful number, since it uses less digits than its factorization.

157317040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966476 (or 1966470 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 157317040 is about 12542.6089789964. The cubic root of 157317040 is about 539.8319550267.

The spelling of 157317040 in words is "one hundred fifty-seven million, three hundred seventeen thousand, forty".