158481240 has 64 divisors (see below), whose sum is σ = 476724960. Its totient is φ = 42147840.

The previous prime is 158481203. The next prime is 158481251. The reversal of 158481240 is 42184851.

158481240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

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, 48952 + ... + 52088.

Almost surely, 2^158481240 is an apocalyptic number.

158481240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158481240 is an abundant number, since it is smaller than the sum of its proper divisors (318243720).

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

158481240 is a wasteful number, since it uses less digits than its factorization.

158481240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 158481240 is about 12588.9332351872. The cubic root of 158481240 is about 541.1603307300.

The spelling of 158481240 in words is "one hundred fifty-eight million, four hundred eighty-one thousand, two hundred forty".