129490635 has 16 divisors (see below), whose sum is σ = 209323296. Its totient is φ = 68348928.

The previous prime is 129490609. The next prime is 129490657. The reversal of 129490635 is 536094921.

It is not a de Polignac number, because 129490635 - 2¹¹ = 129488587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129490593 and 129490602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43044 + ... + 45953.

It is an arithmetic number, because the mean of its divisors is an integer number (13082706).

Almost surely, 2^129490635 is an apocalyptic number.

129490635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129490635 is a deficient number, since it is larger than the sum of its proper divisors (79832661).

129490635 is an equidigital number, since it uses as much as digits as its factorization.

129490635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89102.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 129490635 is about 11379.3951948247. The cubic root of 129490635 is about 505.9172103350.

The spelling of 129490635 in words is "one hundred twenty-nine million, four hundred ninety thousand, six hundred thirty-five".