253223741 has 2 divisors, whose sum is σ = 253223742. Its totient is φ = 253223740.

The previous prime is 253223723. The next prime is 253223743. The reversal of 253223741 is 147322352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225870841 + 27352900 = 15029^2 + 5230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253223741 is a prime.

It is a Sophie Germain prime.

Together with 253223743, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253223743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126611870 + 126611871.

It is an arithmetic number, because the mean of its divisors is an integer number (126611871).

Almost surely, 2^253223741 is an apocalyptic number.

It is an amenable number.

253223741 is a deficient number, since it is larger than the sum of its proper divisors (1).

253223741 is an equidigital number, since it uses as much as digits as its factorization.

253223741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 29.

The square root of 253223741 is about 15913.0054043854. The cubic root of 253223741 is about 632.6567415029.

The spelling of 253223741 in words is "two hundred fifty-three million, two hundred twenty-three thousand, seven hundred forty-one".