252129 has 8 divisors (see below), whose sum is σ = 338560. Its totient is φ = 166896.

The previous prime is 252101. The next prime is 252139. The reversal of 252129 is 921252.

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

It is not a de Polignac number, because 252129 - 2⁷ = 252001 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252139) 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, 504 + ... + 870.

It is an arithmetic number, because the mean of its divisors is an integer number (42320).

2²⁵²¹²⁹ is an apocalyptic number.

It is an amenable number.

252129 is a deficient number, since it is larger than the sum of its proper divisors (86431).

252129 is a wasteful number, since it uses less digits than its factorization.

252129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 360, while the sum is 21.

The square root of 252129 is about 502.1244865569. The cubic root of 252129 is about 63.1743720532.

The spelling of 252129 in words is "two hundred fifty-two thousand, one hundred twenty-nine".