158965540 has 48 divisors (see below), whose sum is σ = 342582912. Its totient is φ = 61940736.

The previous prime is 158965537. The next prime is 158965553. The reversal of 158965540 is 45569851.

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, 129369 + ... + 130591.

It is an arithmetic number, because the mean of its divisors is an integer number (7137144).

Almost surely, 2^158965540 is an apocalyptic number.

158965540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158965540 is an abundant number, since it is smaller than the sum of its proper divisors (183617372).

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

158965540 is a wasteful number, since it uses less digits than its factorization.

158965540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1394 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 158965540 is about 12608.1537109919. The cubic root of 158965540 is about 541.7110109127.

The spelling of 158965540 in words is "one hundred fifty-eight million, nine hundred sixty-five thousand, five hundred forty".