157136620 has 48 divisors (see below), whose sum is σ = 341621280. Its totient is φ = 60673536.

The previous prime is 157136563. The next prime is 157136677. The reversal of 157136620 is 26631751.

157136620 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157136563) and next prime (157136677).

157136620 is strictly pandigital in base 9.

It is an unprimeable number.

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, 75514 + ... + 77566.

It is an arithmetic number, because the mean of its divisors is an integer number (7117110).

Almost surely, 2^157136620 is an apocalyptic number.

157136620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157136620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170810640).

157136620 is an abundant number, since it is smaller than the sum of its proper divisors (184484660).

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

157136620 is a wasteful number, since it uses less digits than its factorization.

157136620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2192 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 157136620 is about 12535.4146321532. The cubic root of 157136620 is about 539.6255062353.

The spelling of 157136620 in words is "one hundred fifty-seven million, one hundred thirty-six thousand, six hundred twenty".