158525879 has 2 divisors, whose sum is σ = 158525880. Its totient is φ = 158525878.

The previous prime is 158525837. The next prime is 158525881. The reversal of 158525879 is 978525851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158525879 is a prime.

Together with 158525881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158527879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79262939 + 79262940.

It is an arithmetic number, because the mean of its divisors is an integer number (79262940).

Almost surely, 2^158525879 is an apocalyptic number.

158525879 is a deficient number, since it is larger than the sum of its proper divisors (1).

158525879 is an equidigital number, since it uses as much as digits as its factorization.

158525879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008000, while the sum is 50.

The square root of 158525879 is about 12590.7060564529. The cubic root of 158525879 is about 541.2111350361.

The spelling of 158525879 in words is "one hundred fifty-eight million, five hundred twenty-five thousand, eight hundred seventy-nine".