158011291 has 2 divisors, whose sum is σ = 158011292. Its totient is φ = 158011290.

The previous prime is 158011261. The next prime is 158011303. The reversal of 158011291 is 192110851.

It is a strong prime.

It is an emirp because it is prime and its reverse (192110851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158011291 - 2²⁷ = 23793563 is a prime.

It is not a weakly prime, because it can be changed into another prime (158011211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79005645 + 79005646.

It is an arithmetic number, because the mean of its divisors is an integer number (79005646).

Almost surely, 2^158011291 is an apocalyptic number.

158011291 is a deficient number, since it is larger than the sum of its proper divisors (1).

158011291 is an equidigital number, since it uses as much as digits as its factorization.

158011291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 28.

The square root of 158011291 is about 12570.2542138176. The cubic root of 158011291 is about 540.6248950115.

The spelling of 158011291 in words is "one hundred fifty-eight million, eleven thousand, two hundred ninety-one".