158538851 has 2 divisors, whose sum is σ = 158538852. Its totient is φ = 158538850.

The previous prime is 158538829. The next prime is 158538871. The reversal of 158538851 is 158835851.

158538851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158538851 is a prime.

It is not a weakly prime, because it can be changed into another prime (158538871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79269425 + 79269426.

It is an arithmetic number, because the mean of its divisors is an integer number (79269426).

Almost surely, 2^158538851 is an apocalyptic number.

158538851 is a deficient number, since it is larger than the sum of its proper divisors (1).

158538851 is an equidigital number, since it uses as much as digits as its factorization.

158538851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192000, while the sum is 44.

The square root of 158538851 is about 12591.2211877959. The cubic root of 158538851 is about 541.2258968727.

The spelling of 158538851 in words is "one hundred fifty-eight million, five hundred thirty-eight thousand, eight hundred fifty-one".