158397032 has 8 divisors (see below), whose sum is σ = 296994450. Its totient is φ = 79198512.

The previous prime is 158397017. The next prime is 158397047. The reversal of 158397032 is 230793851.

It is an interprime number because it is at equal distance from previous prime (158397017) and next prime (158397047).

It can be written as a sum of positive squares in only one way, i.e., 126202756 + 32194276 = 11234^2 + 5674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9899807 + ... + 9899822.

Almost surely, 2^158397032 is an apocalyptic number.

It is an amenable number.

158397032 is a deficient number, since it is larger than the sum of its proper divisors (138597418).

158397032 is a wasteful number, since it uses less digits than its factorization.

158397032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19799635 (or 19799631 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 158397032 is about 12585.5882659493. The cubic root of 158397032 is about 541.0644663811.

The spelling of 158397032 in words is "one hundred fifty-eight million, three hundred ninety-seven thousand, thirty-two".