157713620 has 12 divisors (see below), whose sum is σ = 331198644. Its totient is φ = 63085440.

The previous prime is 157713601. The next prime is 157713643. The reversal of 157713620 is 26317751.

It can be written as a sum of positive squares in 2 ways, for example, as 47169424 + 110544196 = 6868^2 + 10514^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3942821 + ... + 3942860.

It is an arithmetic number, because the mean of its divisors is an integer number (27599887).

Almost surely, 2^157713620 is an apocalyptic number.

157713620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157713620 is an abundant number, since it is smaller than the sum of its proper divisors (173485024).

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

157713620 is a wasteful number, since it uses less digits than its factorization.

157713620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7885690 (or 7885688 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 157713620 is about 12558.4083386391. The cubic root of 157713620 is about 540.2851945731.

It can be divided in two parts, 15771 and 3620, that added together give a palindrome (19391).

The spelling of 157713620 in words is "one hundred fifty-seven million, seven hundred thirteen thousand, six hundred twenty".