253021129 has 8 divisors (see below), whose sum is σ = 255340800. Its totient is φ = 250707600.

The previous prime is 253021123. The next prime is 253021141. The reversal of 253021129 is 921120352.

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 253021129 - 2²⁵ = 219466697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253021123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128847 + ... + 130795.

It is an arithmetic number, because the mean of its divisors is an integer number (31917600).

Almost surely, 2^253021129 is an apocalyptic number.

It is an amenable number.

253021129 is a deficient number, since it is larger than the sum of its proper divisors (2319671).

253021129 is a wasteful number, since it uses less digits than its factorization.

253021129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 253021129 is about 15906.6378911447. The cubic root of 253021129 is about 632.4879605264.

The spelling of 253021129 in words is "two hundred fifty-three million, twenty-one thousand, one hundred twenty-nine".