252645135 has 16 divisors (see below), whose sum is σ = 405811296. Its totient is φ = 134217728.

The previous prime is 252645131. The next prime is 252645161. The reversal of 252645135 is 531546252.

252645135 is nontrivially palindromic in base 2, base 4 and base 16.

It is a 27-Lehmer number, since φ(252645135) divides (252645135-1)²⁷.

It is a cyclic number.

It is not a de Polignac number, because 252645135 - 2² = 252645131 is a prime.

252645135 is an undulating number in base 16.

It is a zygodrome in base 2 and base 4.

It is a junction number, because it is equal to n+sod(n) for n = 252645096 and 252645105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252645131) by changing a digit.

In principle, a polygon with 252645135 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28914 + ... + 36623.

It is an arithmetic number, because the mean of its divisors is an integer number (25363206).

Almost surely, 2^252645135 is an apocalyptic number.

252645135 is a deficient number, since it is larger than the sum of its proper divisors (153166161).

252645135 is a wasteful number, since it uses less digits than its factorization.

252645135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65802.

The product of its digits is 36000, while the sum is 33.

The square root of 252645135 is about 15894.8147205307. The cubic root of 252645135 is about 632.1745090055.

The spelling of 252645135 in words is "two hundred fifty-two million, six hundred forty-five thousand, one hundred thirty-five".