158111541 has 16 divisors (see below), whose sum is σ = 267702400. Its totient is φ = 90349344.

The previous prime is 158111537. The next prime is 158111579. The reversal of 158111541 is 145111851.

158111541 is a `hidden beast` number, since 1 + 5 + 8 + 111 + 541 = 666.

It is not a de Polignac number, because 158111541 - 2² = 158111537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158111531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418096 + ... + 418473.

It is an arithmetic number, because the mean of its divisors is an integer number (16731400).

Almost surely, 2^158111541 is an apocalyptic number.

It is an amenable number.

158111541 is a deficient number, since it is larger than the sum of its proper divisors (109590859).

158111541 is an equidigital number, since it uses as much as digits as its factorization.

158111541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836585 (or 836579 counting only the distinct ones).

The product of its digits is 800, while the sum is 27.

The square root of 158111541 is about 12574.2411699474. The cubic root of 158111541 is about 540.7392036949.

The spelling of 158111541 in words is "one hundred fifty-eight million, one hundred eleven thousand, five hundred forty-one".