252215141 has 2 divisors, whose sum is σ = 252215142. Its totient is φ = 252215140.

The previous prime is 252215129. The next prime is 252215189. The reversal of 252215141 is 141512252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204204100 + 48011041 = 14290^2 + 6929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252215141 is a prime.

It is a super-2 number, since 2×252215141² = 127224954699299762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252215441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126107570 + 126107571.

It is an arithmetic number, because the mean of its divisors is an integer number (126107571).

Almost surely, 2^252215141 is an apocalyptic number.

It is an amenable number.

252215141 is a deficient number, since it is larger than the sum of its proper divisors (1).

252215141 is an equidigital number, since it uses as much as digits as its factorization.

252215141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 23.

The square root of 252215141 is about 15881.2827252713. The cubic root of 252215141 is about 631.8156583620.

Adding to 252215141 its reverse (141512252), we get a palindrome (393727393).

The spelling of 252215141 in words is "two hundred fifty-two million, two hundred fifteen thousand, one hundred forty-one".