252043381 has 2 divisors, whose sum is σ = 252043382. Its totient is φ = 252043380.

The previous prime is 252043373. The next prime is 252043427. The reversal of 252043381 is 183340252.

252043381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228916900 + 23126481 = 15130^2 + 4809^2 .

It is a cyclic number.

It is not a de Polignac number, because 252043381 - 2³ = 252043373 is a prime.

It is a super-2 number, since 2×252043381² = 127051731811822322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252043301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126021690 + 126021691.

It is an arithmetic number, because the mean of its divisors is an integer number (126021691).

Almost surely, 2^252043381 is an apocalyptic number.

It is an amenable number.

252043381 is a deficient number, since it is larger than the sum of its proper divisors (1).

252043381 is an equidigital number, since it uses as much as digits as its factorization.

252043381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 252043381 is about 15875.8741806554. The cubic root of 252043381 is about 631.6722023945.

The spelling of 252043381 in words is "two hundred fifty-two million, forty-three thousand, three hundred eighty-one".