158938137 has 24 divisors (see below), whose sum is σ = 234224640. Its totient is φ = 103831200.

The previous prime is 158938133. The next prime is 158938141. The reversal of 158938137 is 731839851.

158938137 is a `hidden beast` number, since 1 + 589 + 38 + 1 + 37 = 666.

It is an interprime number because it is at equal distance from previous prime (158938133) and next prime (158938141).

It is not a de Polignac number, because 158938137 - 2² = 158938133 is a prime.

It is a super-2 number, since 2×158938137² = 50522662786061538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158938092 and 158938101.

It is not an unprimeable number, because it can be changed into a prime (158938133) 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, 137512 + ... + 138662.

It is an arithmetic number, because the mean of its divisors is an integer number (9759360).

Almost surely, 2^158938137 is an apocalyptic number.

It is an amenable number.

158938137 is a deficient number, since it is larger than the sum of its proper divisors (75286503).

158938137 is a wasteful number, since it uses less digits than its factorization.

158938137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453 (or 1450 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 158938137 is about 12607.0669467565. The cubic root of 158938137 is about 541.6798818183.

The spelling of 158938137 in words is "one hundred fifty-eight million, nine hundred thirty-eight thousand, one hundred thirty-seven".