252145874 has 8 divisors (see below), whose sum is σ = 382118268. Its totient is φ = 124773120.

The previous prime is 252145867. The next prime is 252145889. The reversal of 252145874 is 478541252.

252145874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 221265625 + 30880249 = 14875^2 + 5557^2 .

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649667 + ... + 650054.

Almost surely, 2^252145874 is an apocalyptic number.

252145874 is a deficient number, since it is larger than the sum of its proper divisors (129972394).

252145874 is a wasteful number, since it uses less digits than its factorization.

252145874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299820.

The product of its digits is 89600, while the sum is 38.

The square root of 252145874 is about 15879.1018007947. The cubic root of 252145874 is about 631.7578135897.

The spelling of 252145874 in words is "two hundred fifty-two million, one hundred forty-five thousand, eight hundred seventy-four".