129514652531 has 4 divisors (see below), whose sum is σ = 141288711864. Its totient is φ = 117740593200.

The previous prime is 129514652513. The next prime is 129514652549. The reversal of 129514652531 is 135256415921.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (129514652513) and next prime (129514652549).

It is a cyclic number.

It is not a de Polignac number, because 129514652531 - 2¹⁰ = 129514651507 is a prime.

It is a super-2 number, since 2×129514652531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129514652231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5887029650 + ... + 5887029671.

It is an arithmetic number, because the mean of its divisors is an integer number (35322177966).

Almost surely, 2^129514652531 is an apocalyptic number.

129514652531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

129514652531 is a deficient number, since it is larger than the sum of its proper divisors (11774059333).

129514652531 is a wasteful number, since it uses less digits than its factorization.

129514652531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11774059332.

The product of its digits is 324000, while the sum is 44.

The spelling of 129514652531 in words is "one hundred twenty-nine billion, five hundred fourteen million, six hundred fifty-two thousand, five hundred thirty-one".