157951590 has 64 divisors (see below), whose sum is σ = 403061184. Its totient is φ = 39477248.

The previous prime is 157951589. The next prime is 157951597. The reversal of 157951590 is 95159751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157951597) 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 31 ways as a sum of consecutive naturals, for example, 161182 + ... + 162158.

It is an arithmetic number, because the mean of its divisors is an integer number (6297831).

Almost surely, 2^157951590 is an apocalyptic number.

157951590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157951590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201530592).

157951590 is an abundant number, since it is smaller than the sum of its proper divisors (245109594).

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

157951590 is a wasteful number, since it uses less digits than its factorization.

157951590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 70875, while the sum is 42.

The square root of 157951590 is about 12567.8792960467. The cubic root of 157951590 is about 540.5567987963.

The spelling of 157951590 in words is "one hundred fifty-seven million, nine hundred fifty-one thousand, five hundred ninety".