129153864 has 32 divisors (see below), whose sum is σ = 369011520. Its totient is φ = 36901056.

The previous prime is 129153853. The next prime is 129153877. The reversal of 129153864 is 468351921.

It is a super-2 number, since 2×129153864² = 33361441172260992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384219 + ... + 384554.

It is an arithmetic number, because the mean of its divisors is an integer number (11531610).

Almost surely, 2^129153864 is an apocalyptic number.

129153864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129153864 is an abundant number, since it is smaller than the sum of its proper divisors (239857656).

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

129153864 is a wasteful number, since it uses less digits than its factorization.

129153864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768789 (or 768785 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 129153864 is about 11364.5881579580. The cubic root of 129153864 is about 505.4782438116.

It can be divided in two parts, 1291 and 53864, that added together give a palindrome (55155).

The spelling of 129153864 in words is "one hundred twenty-nine million, one hundred fifty-three thousand, eight hundred sixty-four".