158958540 has 72 divisors (see below), whose sum is σ = 519272208. Its totient is φ = 39127680.

The previous prime is 158958533. The next prime is 158958557. The reversal of 158958540 is 45859851.

It is a happy number.

158958540 is a `hidden beast` number, since 1 + 58 + 9 + 58 + 540 = 666.

158958540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31626 + ... + 36305.

It is an arithmetic number, because the mean of its divisors is an integer number (7212114).

Almost surely, 2^158958540 is an apocalyptic number.

158958540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158958540 is an abundant number, since it is smaller than the sum of its proper divisors (360313668).

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

158958540 is a wasteful number, since it uses less digits than its factorization.

158958540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67959 (or 67954 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 158958540 is about 12607.8761097974. The cubic root of 158958540 is about 541.7030594352.

The spelling of 158958540 in words is "one hundred fifty-eight million, nine hundred fifty-eight thousand, five hundred forty".