136480979 has 2 divisors, whose sum is σ = 136480980. Its totient is φ = 136480978.

The previous prime is 136480963. The next prime is 136481027. The reversal of 136480979 is 979084631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136480979 - 2⁴ = 136480963 is a prime.

It is not a weakly prime, because it can be changed into another prime (136480079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68240489 + 68240490.

It is an arithmetic number, because the mean of its divisors is an integer number (68240490).

Almost surely, 2^136480979 is an apocalyptic number.

136480979 is a deficient number, since it is larger than the sum of its proper divisors (1).

136480979 is an equidigital number, since it uses as much as digits as its factorization.

136480979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 136480979 is about 11682.5073935350. The cubic root of 136480979 is about 514.8618462489.

The spelling of 136480979 in words is "one hundred thirty-six million, four hundred eighty thousand, nine hundred seventy-nine".