129538364 has 24 divisors (see below), whose sum is σ = 230630400. Its totient is φ = 63650160.

The previous prime is 129538361. The next prime is 129538379. The reversal of 129538364 is 463835921.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129538361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124157 + ... + 125195.

It is an arithmetic number, because the mean of its divisors is an integer number (9609600).

Almost surely, 2^129538364 is an apocalyptic number.

It is an amenable number.

129538364 is a deficient number, since it is larger than the sum of its proper divisors (101092036).

129538364 is a wasteful number, since it uses less digits than its factorization.

129538364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1551 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 129538364 is about 11381.4921693072. The cubic root of 129538364 is about 505.9793614354.

The spelling of 129538364 in words is "one hundred twenty-nine million, five hundred thirty-eight thousand, three hundred sixty-four".