155410979 has 2 divisors, whose sum is σ = 155410980. Its totient is φ = 155410978.

The previous prime is 155410939. The next prime is 155411017. The reversal of 155410979 is 979014551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155410979 is a prime.

It is not a weakly prime, because it can be changed into another prime (155410909) 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, 77705489 + 77705490.

It is an arithmetic number, because the mean of its divisors is an integer number (77705490).

Almost surely, 2^155410979 is an apocalyptic number.

155410979 is a deficient number, since it is larger than the sum of its proper divisors (1).

155410979 is an equidigital number, since it uses as much as digits as its factorization.

155410979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 155410979 is about 12466.3939854314. The cubic root of 155410979 is about 537.6428799174.

The spelling of 155410979 in words is "one hundred fifty-five million, four hundred ten thousand, nine hundred seventy-nine".