129397365 has 16 divisors (see below), whose sum is σ = 230040000. Its totient is φ = 69011856.

The previous prime is 129397337. The next prime is 129397393. The reversal of 129397365 is 563793921.

It is an interprime number because it is at equal distance from previous prime (129397337) and next prime (129397393).

It is not a de Polignac number, because 129397365 - 2⁷ = 129397237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 129397365.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479115 + ... + 479384.

It is an arithmetic number, because the mean of its divisors is an integer number (14377500).

Almost surely, 2^129397365 is an apocalyptic number.

129397365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129397365 is a deficient number, since it is larger than the sum of its proper divisors (100642635).

129397365 is an equidigital number, since it uses as much as digits as its factorization.

129397365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958513 (or 958507 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 129397365 is about 11375.2962598782. The cubic root of 129397365 is about 505.7957131779.

The spelling of 129397365 in words is "one hundred twenty-nine million, three hundred ninety-seven thousand, three hundred sixty-five".