158606977 has 2 divisors, whose sum is σ = 158606978. Its totient is φ = 158606976.

The previous prime is 158606963. The next prime is 158606993. The reversal of 158606977 is 779606851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111492481 + 47114496 = 10559^2 + 6864^2 .

It is an emirp because it is prime and its reverse (779606851) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158606977 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158606977.

It is not a weakly prime, because it can be changed into another prime (158606947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79303488 + 79303489.

It is an arithmetic number, because the mean of its divisors is an integer number (79303489).

Almost surely, 2^158606977 is an apocalyptic number.

It is an amenable number.

158606977 is a deficient number, since it is larger than the sum of its proper divisors (1).

158606977 is an equidigital number, since it uses as much as digits as its factorization.

158606977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 158606977 is about 12593.9261947972. The cubic root of 158606977 is about 541.3034094720.

The spelling of 158606977 in words is "one hundred fifty-eight million, six hundred six thousand, nine hundred seventy-seven".