252002146 has 16 divisors (see below), whose sum is σ = 418177728. Its totient is φ = 112932400.

The previous prime is 252002143. The next prime is 252002147. The reversal of 252002146 is 641200252.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (252002143) 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, 79105 + ... + 82228.

It is an arithmetic number, because the mean of its divisors is an integer number (26136108).

Almost surely, 2^252002146 is an apocalyptic number.

252002146 is a deficient number, since it is larger than the sum of its proper divisors (166175582).

252002146 is a wasteful number, since it uses less digits than its factorization.

252002146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161417.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 252002146 is about 15874.5754588902. The cubic root of 252002146 is about 631.6377527378.

Adding to 252002146 its reverse (641200252), we get a palindrome (893202398).

The spelling of 252002146 in words is "two hundred fifty-two million, two thousand, one hundred forty-six".