129270474 has 12 divisors (see below), whose sum is σ = 280086066. Its totient is φ = 43090152.

The previous prime is 129270473. The next prime is 129270521. The reversal of 129270474 is 474072921.

It can be written as a sum of positive squares in only one way, i.e., 114639849 + 14630625 = 10707^2 + 3825^2 .

It is not an unprimeable number, because it can be changed into a prime (129270473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3590829 + ... + 3590864.

Almost surely, 2^129270474 is an apocalyptic number.

129270474 is an abundant number, since it is smaller than the sum of its proper divisors (150815592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129270474 is a wasteful number, since it uses less digits than its factorization.

129270474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7181701 (or 7181698 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 129270474 is about 11369.7174107363. The cubic root of 129270474 is about 505.6303262075.

The spelling of 129270474 in words is "one hundred twenty-nine million, two hundred seventy thousand, four hundred seventy-four".