158961827 has 2 divisors, whose sum is σ = 158961828. Its totient is φ = 158961826.

The previous prime is 158961701. The next prime is 158961833. The reversal of 158961827 is 728169851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158961827 - 2⁸ = 158961571 is a prime.

It is not a weakly prime, because it can be changed into another prime (158961877) 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 as a sum of consecutive naturals, namely, 79480913 + 79480914.

It is an arithmetic number, because the mean of its divisors is an integer number (79480914).

Almost surely, 2^158961827 is an apocalyptic number.

158961827 is a deficient number, since it is larger than the sum of its proper divisors (1).

158961827 is an equidigital number, since it uses as much as digits as its factorization.

158961827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 47.

The square root of 158961827 is about 12608.0064641481. The cubic root of 158961827 is about 541.7067932509.

The spelling of 158961827 in words is "one hundred fifty-eight million, nine hundred sixty-one thousand, eight hundred twenty-seven".