252134145 has 24 divisors (see below), whose sum is σ = 437764392. Its totient is φ = 134246400.

The previous prime is 252134131. The next prime is 252134159. The reversal of 252134145 is 541431252.

It is an interprime number because it is at equal distance from previous prime (252134131) and next prime (252134159).

It can be written as a sum of positive squares in 4 ways, for example, as 35426304 + 216707841 = 5952^2 + 14721^2 .

It is a de Polignac number, because none of the positive numbers 2^k-252134145 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24475 + ... + 33215.

It is an arithmetic number, because the mean of its divisors is an integer number (18240183).

Almost surely, 2^252134145 is an apocalyptic number.

It is an amenable number.

252134145 is a deficient number, since it is larger than the sum of its proper divisors (185630247).

252134145 is a wasteful number, since it uses less digits than its factorization.

252134145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393 (or 9390 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 252134145 is about 15878.7324746026. The cubic root of 252134145 is about 631.7480176699.

Adding to 252134145 its reverse (541431252), we get a palindrome (793565397).

The spelling of 252134145 in words is "two hundred fifty-two million, one hundred thirty-four thousand, one hundred forty-five".