129280593 has 16 divisors (see below), whose sum is σ = 186338880. Its totient is φ = 79255104.

The previous prime is 129280589. The next prime is 129280601. The reversal of 129280593 is 395082921.

It is not a de Polignac number, because 129280593 - 2² = 129280589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (129280993) 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, 4330 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (11646180).

Almost surely, 2^129280593 is an apocalyptic number.

129280593 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129280593 is a deficient number, since it is larger than the sum of its proper divisors (57058287).

129280593 is a wasteful number, since it uses less digits than its factorization.

129280593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12608.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 129280593 is about 11370.1623998956. The cubic root of 129280593 is about 505.6435190623.

The spelling of 129280593 in words is "one hundred twenty-nine million, two hundred eighty thousand, five hundred ninety-three".