129829485 has 32 divisors (see below), whose sum is σ = 214502400. Its totient is φ = 67004928.

The previous prime is 129829471. The next prime is 129829523. The reversal of 129829485 is 584928921.

It is not a de Polignac number, because 129829485 - 2¹⁸ = 129567341 is a prime.

It is a congruent number.

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, 123241 + ... + 124289.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2^129829485 is an apocalyptic number.

129829485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129829485 is a deficient number, since it is larger than the sum of its proper divisors (84672915).

129829485 is a wasteful number, since it uses less digits than its factorization.

129829485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317.

The product of its digits is 414720, while the sum is 48.

The square root of 129829485 is about 11394.2742199756. The cubic root of 129829485 is about 506.3581192638.

The spelling of 129829485 in words is "one hundred twenty-nine million, eight hundred twenty-nine thousand, four hundred eighty-five".