157740700331 has 8 divisors (see below), whose sum is σ = 159265142784. Its totient is φ = 156223535080.

The previous prime is 157740700321. The next prime is 157740700343. The reversal of 157740700331 is 133007047751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157740700331 - 2⁶ = 157740700267 is a prime.

It is a super-2 number, since 2×157740700331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157740700321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775735 + ... + 1862448.

It is an arithmetic number, because the mean of its divisors is an integer number (19908142848).

Almost surely, 2^157740700331 is an apocalyptic number.

157740700331 is a deficient number, since it is larger than the sum of its proper divisors (1524442453).

157740700331 is a wasteful number, since it uses less digits than its factorization.

157740700331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638601.

The product of its (nonzero) digits is 61740, while the sum is 38.

The spelling of 157740700331 in words is "one hundred fifty-seven billion, seven hundred forty million, seven hundred thousand, three hundred thirty-one".