129377459 has 2 divisors, whose sum is σ = 129377460. Its totient is φ = 129377458.

The previous prime is 129377453. The next prime is 129377467. The reversal of 129377459 is 954773921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129377459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (129377453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64688729 + 64688730.

It is an arithmetic number, because the mean of its divisors is an integer number (64688730).

Almost surely, 2^129377459 is an apocalyptic number.

129377459 is a deficient number, since it is larger than the sum of its proper divisors (1).

129377459 is an equidigital number, since it uses as much as digits as its factorization.

129377459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The square root of 129377459 is about 11374.4212600026. The cubic root of 129377459 is about 505.7697752829.

The spelling of 129377459 in words is "one hundred twenty-nine million, three hundred seventy-seven thousand, four hundred fifty-nine".