129717633 has 16 divisors (see below), whose sum is σ = 184951296. Its totient is φ = 80582400.

The previous prime is 129717619. The next prime is 129717647. The reversal of 129717633 is 336717921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (129717619) and next prime (129717647).

It is not a de Polignac number, because 129717633 - 2¹³ = 129709441 is a prime.

It is a super-2 number, since 2×129717633² = 33653328622245378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129717591 and 129717600.

It is not an unprimeable number, because it can be changed into a prime (129717613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7441 + ... + 17742.

It is an arithmetic number, because the mean of its divisors is an integer number (11559456).

Almost surely, 2^129717633 is an apocalyptic number.

It is an amenable number.

129717633 is a deficient number, since it is larger than the sum of its proper divisors (55233663).

129717633 is a wasteful number, since it uses less digits than its factorization.

129717633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25304.

The product of its digits is 47628, while the sum is 39.

The square root of 129717633 is about 11389.3649076672. The cubic root of 129717633 is about 506.2126632425.

The spelling of 129717633 in words is "one hundred twenty-nine million, seven hundred seventeen thousand, six hundred thirty-three".