129038875 has 32 divisors (see below), whose sum is σ = 186226560. Its totient is φ = 87436800.

The previous prime is 129038863. The next prime is 129038927. The reversal of 129038875 is 578830921.

It is not a de Polignac number, because 129038875 - 2¹³ = 129030683 is a prime.

It is a super-2 number, since 2×129038875² = 33302062522531250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77047 + ... + 78703.

It is an arithmetic number, because the mean of its divisors is an integer number (5819580).

Almost surely, 2^129038875 is an apocalyptic number.

129038875 is a deficient number, since it is larger than the sum of its proper divisors (57187685).

129038875 is an equidigital number, since it uses as much as digits as its factorization.

129038875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 129038875 is about 11359.5279391355. The cubic root of 129038875 is about 505.3281858512.

The spelling of 129038875 in words is "one hundred twenty-nine million, thirty-eight thousand, eight hundred seventy-five".