158828377 has 2 divisors, whose sum is σ = 158828378. Its totient is φ = 158828376.

The previous prime is 158828357. The next prime is 158828381. The reversal of 158828377 is 773828851.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150700176 + 8128201 = 12276^2 + 2851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158828377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158828377.

It is not a weakly prime, because it can be changed into another prime (158828357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79414188 + 79414189.

It is an arithmetic number, because the mean of its divisors is an integer number (79414189).

Almost surely, 2^158828377 is an apocalyptic number.

It is an amenable number.

158828377 is a deficient number, since it is larger than the sum of its proper divisors (1).

158828377 is an equidigital number, since it uses as much as digits as its factorization.

158828377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 49.

The square root of 158828377 is about 12602.7130809203. The cubic root of 158828377 is about 541.5551614368. Note that the first 3 decimals are identical.

The spelling of 158828377 in words is "one hundred fifty-eight million, eight hundred twenty-eight thousand, three hundred seventy-seven".