157727140 has 12 divisors (see below), whose sum is σ = 331227036. Its totient is φ = 63090848.

The previous prime is 157727137. The next prime is 157727147. The reversal of 157727140 is 41727751.

157727140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43322724 + 114404416 = 6582^2 + 10696^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157727096 and 157727105.

It is not an unprimeable number, because it can be changed into a prime (157727147) 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, 3943159 + ... + 3943198.

It is an arithmetic number, because the mean of its divisors is an integer number (27602253).

Almost surely, 2^157727140 is an apocalyptic number.

157727140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157727140 is an abundant number, since it is smaller than the sum of its proper divisors (173499896).

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

157727140 is a wasteful number, since it uses less digits than its factorization.

157727140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7886366 (or 7886364 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 157727140 is about 12558.9466118779. The cubic root of 157727140 is about 540.3006327813.

The spelling of 157727140 in words is "one hundred fifty-seven million, seven hundred twenty-seven thousand, one hundred forty".