158434725 has 24 divisors (see below), whose sum is σ = 265643712. Its totient is φ = 83305600.

The previous prime is 158434667. The next prime is 158434729. The reversal of 158434725 is 527434851.

It is not a de Polignac number, because 158434725 - 2⁸ = 158434469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158434729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9552 + ... + 20201.

It is an arithmetic number, because the mean of its divisors is an integer number (11068488).

Almost surely, 2^158434725 is an apocalyptic number.

158434725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158434725 is a deficient number, since it is larger than the sum of its proper divisors (107208987).

158434725 is a wasteful number, since it uses less digits than its factorization.

158434725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29837 (or 29832 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 158434725 is about 12587.0856436270. The cubic root of 158434725 is about 541.1073811697.

The spelling of 158434725 in words is "one hundred fifty-eight million, four hundred thirty-four thousand, seven hundred twenty-five".