158566379 has 2 divisors, whose sum is σ = 158566380. Its totient is φ = 158566378.

The previous prime is 158566339. The next prime is 158566409. The reversal of 158566379 is 973665851.

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-158566379 is a prime.

It is a Chen prime.

It is equal to p_8898566 and since 158566379 and 8898566 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (158566339) 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, 79283189 + 79283190.

It is an arithmetic number, because the mean of its divisors is an integer number (79283190).

Almost surely, 2^158566379 is an apocalyptic number.

158566379 is a deficient number, since it is larger than the sum of its proper divisors (1).

158566379 is an equidigital number, since it uses as much as digits as its factorization.

158566379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 50.

The square root of 158566379 is about 12592.3142829267. The cubic root of 158566379 is about 541.2572204339.

The spelling of 158566379 in words is "one hundred fifty-eight million, five hundred sixty-six thousand, three hundred seventy-nine".