129377683 has 2 divisors, whose sum is σ = 129377684. Its totient is φ = 129377682.

The previous prime is 129377627. The next prime is 129377693. The reversal of 129377683 is 386773921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129377683 is a prime.

It is not a weakly prime, because it can be changed into another prime (129377693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64688841 + 64688842.

It is an arithmetic number, because the mean of its divisors is an integer number (64688842).

Almost surely, 2^129377683 is an apocalyptic number.

129377683 is a deficient number, since it is larger than the sum of its proper divisors (1).

129377683 is an equidigital number, since it uses as much as digits as its factorization.

129377683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 129377683 is about 11374.4311066532. The cubic root of 129377683 is about 505.7700671740.

The spelling of 129377683 in words is "one hundred twenty-nine million, three hundred seventy-seven thousand, six hundred eighty-three".