252440141 has 2 divisors, whose sum is σ = 252440142. Its totient is φ = 252440140.

The previous prime is 252440081. The next prime is 252440179. The reversal of 252440141 is 141044252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162664516 + 89775625 = 12754^2 + 9475^2 .

It is a cyclic number.

It is not a de Polignac number, because 252440141 - 2²⁶ = 185331277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252440641) by changing a digit.

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 as a sum of consecutive naturals, namely, 126220070 + 126220071.

It is an arithmetic number, because the mean of its divisors is an integer number (126220071).

Almost surely, 2^252440141 is an apocalyptic number.

It is an amenable number.

252440141 is a deficient number, since it is larger than the sum of its proper divisors (1).

252440141 is an equidigital number, since it uses as much as digits as its factorization.

252440141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 252440141 is about 15888.3649567852. The cubic root of 252440141 is about 632.0034824956.

Adding to 252440141 its reverse (141044252), we get a palindrome (393484393).

The spelling of 252440141 in words is "two hundred fifty-two million, four hundred forty thousand, one hundred forty-one".