129877553 has 8 divisors (see below), whose sum is σ = 140403648. Its totient is φ = 119427984.

The previous prime is 129877547. The next prime is 129877571. The reversal of 129877553 is 355778921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129877553 - 2⁴ = 129877537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129877498 and 129877507.

It is not an unprimeable number, because it can be changed into a prime (129877453) 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, 15575 + ... + 22412.

It is an arithmetic number, because the mean of its divisors is an integer number (17550456).

Almost surely, 2^129877553 is an apocalyptic number.

129877553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129877553 is a deficient number, since it is larger than the sum of its proper divisors (10526095).

129877553 is a wasteful number, since it uses less digits than its factorization.

129877553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38263.

The product of its digits is 529200, while the sum is 47.

The square root of 129877553 is about 11396.3833298113. The cubic root of 129877553 is about 506.4206028074.

The spelling of 129877553 in words is "one hundred twenty-nine million, eight hundred seventy-seven thousand, five hundred fifty-three".