158669361 has 20 divisors (see below), whose sum is σ = 249502000. Its totient is φ = 100211256.

The previous prime is 158669317. The next prime is 158669363. The reversal of 158669361 is 163966851.

158669361 is a `hidden beast` number, since 1 + 586 + 6 + 9 + 3 + 61 = 666.

It is not a de Polignac number, because 158669361 - 2⁶ = 158669297 is a prime.

It is a super-2 number, since 2×158669361² = 50351932240296642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158669363) 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 19 ways as a sum of consecutive naturals, for example, 50011 + ... + 53088.

It is an arithmetic number, because the mean of its divisors is an integer number (12475100).

Almost surely, 2^158669361 is an apocalyptic number.

It is an amenable number.

158669361 is a deficient number, since it is larger than the sum of its proper divisors (90832639).

158669361 is a wasteful number, since it uses less digits than its factorization.

158669361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103130 (or 103121 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 158669361 is about 12596.4027007714. The cubic root of 158669361 is about 541.3743694558.

The spelling of 158669361 in words is "one hundred fifty-eight million, six hundred sixty-nine thousand, three hundred sixty-one".