152771640 has 64 divisors (see below), whose sum is σ = 523791360. Its totient is φ = 34919040.

The previous prime is 152771611. The next prime is 152771657. The reversal of 152771640 is 46177251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90096 + ... + 91775.

It is an arithmetic number, because the mean of its divisors is an integer number (8184240).

Almost surely, 2^152771640 is an apocalyptic number.

152771640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152771640 is an abundant number, since it is smaller than the sum of its proper divisors (371019720).

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

152771640 is a wasteful number, since it uses less digits than its factorization.

152771640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181892 (or 181888 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 152771640 is about 12360.0825239964. The cubic root of 152771640 is about 534.5818959460.

The spelling of 152771640 in words is "one hundred fifty-two million, seven hundred seventy-one thousand, six hundred forty".