252145102 has 8 divisors (see below), whose sum is σ = 412601112. Its totient is φ = 114611400.

The previous prime is 252145063. The next prime is 252145129. The reversal of 252145102 is 201541252.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 11461141 = 252145102 / (2 + 5 + 2 + 1 + 4 + 5 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5730549 + ... + 5730592.

It is an arithmetic number, because the mean of its divisors is an integer number (51575139).

Almost surely, 2^252145102 is an apocalyptic number.

252145102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

252145102 is a deficient number, since it is larger than the sum of its proper divisors (160456010).

252145102 is a wasteful number, since it uses less digits than its factorization.

252145102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11461154.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 252145102 is about 15879.0774920963. The cubic root of 252145102 is about 631.7571688339.

Adding to 252145102 its reverse (201541252), we get a palindrome (453686354).

The spelling of 252145102 in words is "two hundred fifty-two million, one hundred forty-five thousand, one hundred two".