129588953 has 4 divisors (see below), whose sum is σ = 139557348. Its totient is φ = 119620560.

The previous prime is 129588947. The next prime is 129588961. The reversal of 129588953 is 359885921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67683529 + 61905424 = 8227^2 + 7868^2 .

It is a cyclic number.

It is not a de Polignac number, because 129588953 - 2⁶ = 129588889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129588913) 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, 4984178 + ... + 4984203.

It is an arithmetic number, because the mean of its divisors is an integer number (34889337).

Almost surely, 2^129588953 is an apocalyptic number.

129588953 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129588953 is a deficient number, since it is larger than the sum of its proper divisors (9968395).

129588953 is an equidigital number, since it uses as much as digits as its factorization.

129588953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9968394.

The product of its digits is 777600, while the sum is 50.

The square root of 129588953 is about 11383.7143762482. The cubic root of 129588953 is about 506.0452200678.

The spelling of 129588953 in words is "one hundred twenty-nine million, five hundred eighty-eight thousand, nine hundred fifty-three".