157122174140 has 12 divisors (see below), whose sum is σ = 329956565736. Its totient is φ = 62848869648.

The previous prime is 157122174133. The next prime is 157122174149. The reversal of 157122174140 is 41471221751.

It is a happy number.

It is a super-3 number, since 3×157122174140³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157122174140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157122174149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928054334 + ... + 3928054373.

It is an arithmetic number, because the mean of its divisors is an integer number (27496380478).

Almost surely, 2^157122174140 is an apocalyptic number.

157122174140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157122174140 is an abundant number, since it is smaller than the sum of its proper divisors (172834391596).

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

157122174140 is a wasteful number, since it uses less digits than its factorization.

157122174140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856108716 (or 7856108714 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

Adding to 157122174140 its reverse (41471221751), we get a palindrome (198593395891).

The spelling of 157122174140 in words is "one hundred fifty-seven billion, one hundred twenty-two million, one hundred seventy-four thousand, one hundred forty".