157391712 has 216 divisors, whose sum is σ = 498843072. Its totient is φ = 47001600.

The previous prime is 157391699. The next prime is 157391713. The reversal of 157391712 is 217193751.

It is a super-3 number, since 3×157391712³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157391713) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2580162 + ... + 2580222.

Almost surely, 2^157391712 is an apocalyptic number.

157391712 is a gapful number since it is divisible by the number (12) 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 157391712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249421536).

157391712 is an abundant number, since it is smaller than the sum of its proper divisors (341451360).

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

157391712 is a wasteful number, since it uses less digits than its factorization.

157391712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 114 counting only the distinct ones).

The product of its digits is 13230, while the sum is 36.

The square root of 157391712 is about 12545.5853590018. The cubic root of 157391712 is about 539.9173536069.

The spelling of 157391712 in words is "one hundred fifty-seven million, three hundred ninety-one thousand, seven hundred twelve".