253761841 has 2 divisors, whose sum is σ = 253761842. Its totient is φ = 253761840.

The previous prime is 253761817. The next prime is 253761857. The reversal of 253761841 is 148167352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205320241 + 48441600 = 14329^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 253761841 - 2⁷ = 253761713 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253761841.

It is not a weakly prime, because it can be changed into another prime (253701841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126880920 + 126880921.

It is an arithmetic number, because the mean of its divisors is an integer number (126880921).

Almost surely, 2^253761841 is an apocalyptic number.

It is an amenable number.

253761841 is a deficient number, since it is larger than the sum of its proper divisors (1).

253761841 is an equidigital number, since it uses as much as digits as its factorization.

253761841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 253761841 is about 15929.9039859002. The cubic root of 253761841 is about 633.1045559350.

The spelling of 253761841 in words is "two hundred fifty-three million, seven hundred sixty-one thousand, eight hundred forty-one".