253670369 has 2 divisors, whose sum is σ = 253670370. Its totient is φ = 253670368.

The previous prime is 253670297. The next prime is 253670371. The reversal of 253670369 is 963076352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241336225 + 12334144 = 15535^2 + 3512^2 .

It is a cyclic number.

It is not a de Polignac number, because 253670369 - 2²⁰ = 252621793 is a prime.

It is a super-2 number, since 2×253670369² = 128697312217192322, which contains 22 as substring.

Together with 253670371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253670069) 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, 126835184 + 126835185.

It is an arithmetic number, because the mean of its divisors is an integer number (126835185).

Almost surely, 2^253670369 is an apocalyptic number.

It is an amenable number.

253670369 is a deficient number, since it is larger than the sum of its proper divisors (1).

253670369 is an equidigital number, since it uses as much as digits as its factorization.

253670369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 253670369 is about 15927.0326489274. The cubic root of 253670369 is about 633.0284763329.

The spelling of 253670369 in words is "two hundred fifty-three million, six hundred seventy thousand, three hundred sixty-nine".