129414131 has 8 divisors (see below), whose sum is σ = 161347584. Its totient is φ = 100842120.

The previous prime is 129414121. The next prime is 129414139. The reversal of 129414131 is 131414921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 129414131 - 2⁶ = 129414067 is a prime.

It is a super-2 number, since 2×129414131² = 33496034604970322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129414131.

It is not an unprimeable number, because it can be changed into a prime (129414139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840275 + ... + 840428.

It is an arithmetic number, because the mean of its divisors is an integer number (20168448).

Almost surely, 2^129414131 is an apocalyptic number.

129414131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

129414131 is a deficient number, since it is larger than the sum of its proper divisors (31933453).

129414131 is a wasteful number, since it uses less digits than its factorization.

129414131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680721.

The product of its digits is 864, while the sum is 26.

The square root of 129414131 is about 11376.0331838475. The cubic root of 129414131 is about 505.8175575297.

The spelling of 129414131 in words is "one hundred twenty-nine million, four hundred fourteen thousand, one hundred thirty-one".