158643125 has 20 divisors (see below), whose sum is σ = 202885056. Its totient is φ = 123942000.

The previous prime is 158643113. The next prime is 158643143. The reversal of 158643125 is 521346851.

It is a de Polignac number, because none of the positive numbers 2^k-158643125 is a prime.

It is a super-2 number, since 2×158643125² = 50335282219531250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23924 + ... + 29826.

Almost surely, 2^158643125 is an apocalyptic number.

It is an amenable number.

158643125 is a deficient number, since it is larger than the sum of its proper divisors (44241931).

158643125 is an frugal number, since it uses more digits than its factorization.

158643125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966 (or 5951 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 158643125 is about 12595.3612492854. The cubic root of 158643125 is about 541.3445290363.

Adding to 158643125 its reverse (521346851), we get a palindrome (679989976).

The spelling of 158643125 in words is "one hundred fifty-eight million, six hundred forty-three thousand, one hundred twenty-five".