158242755 has 32 divisors (see below), whose sum is σ = 285124608. Its totient is φ = 74246400.

The previous prime is 158242727. The next prime is 158242759. The reversal of 158242755 is 557242851.

It is not a de Polignac number, because 158242755 - 2⁸ = 158242499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158242759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10354 + ... + 20583.

It is an arithmetic number, because the mean of its divisors is an integer number (8910144).

Almost surely, 2^158242755 is an apocalyptic number.

158242755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

158242755 is a deficient number, since it is larger than the sum of its proper divisors (126881853).

158242755 is a wasteful number, since it uses less digits than its factorization.

158242755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30987.

The product of its digits is 112000, while the sum is 39.

The square root of 158242755 is about 12579.4576592157. The cubic root of 158242755 is about 540.8887456681. Note that the first 3 decimals are identical.

The spelling of 158242755 in words is "one hundred fifty-eight million, two hundred forty-two thousand, seven hundred fifty-five".