252062981 has 4 divisors (see below), whose sum is σ = 258875532. Its totient is φ = 245250432.

The previous prime is 252062977. The next prime is 252062999. The reversal of 252062981 is 189260252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 180660481 + 71402500 = 13441^2 + 8450^2 .

It is a cyclic number.

It is not a de Polignac number, because 252062981 - 2² = 252062977 is a prime.

It is a super-2 number, since 2×252062981² = 127071492781212722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252002981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3406220 + ... + 3406293.

It is an arithmetic number, because the mean of its divisors is an integer number (64718883).

Almost surely, 2^252062981 is an apocalyptic number.

It is an amenable number.

252062981 is a deficient number, since it is larger than the sum of its proper divisors (6812551).

252062981 is an equidigital number, since it uses as much as digits as its factorization.

252062981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6812550.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 252062981 is about 15876.4914574978. The cubic root of 252062981 is about 631.6885758381.

The spelling of 252062981 in words is "two hundred fifty-two million, sixty-two thousand, nine hundred eighty-one".