129106474 has 12 divisors (see below), whose sum is σ = 225277794. Its totient is φ = 55331304.

The previous prime is 129106459. The next prime is 129106513. The reversal of 129106474 is 474601921.

It can be written as a sum of positive squares in only one way, i.e., 105165025 + 23941449 = 10255^2 + 4893^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 658609 + ... + 658804.

Almost surely, 2^129106474 is an apocalyptic number.

129106474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129106474 is a deficient number, since it is larger than the sum of its proper divisors (96171320).

129106474 is a wasteful number, since it uses less digits than its factorization.

129106474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317429 (or 1317422 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 129106474 is about 11362.5029812977. The cubic root of 129106474 is about 505.4164117618.

The spelling of 129106474 in words is "one hundred twenty-nine million, one hundred six thousand, four hundred seventy-four".