253709419 has 2 divisors, whose sum is σ = 253709420. Its totient is φ = 253709418.

The previous prime is 253709347. The next prime is 253709441. The reversal of 253709419 is 914907352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253709419 is a prime.

It is a super-2 number, since 2×253709419² = 128736938578635122, which contains 22 as substring.

It is equal to p_13870975 and since 253709419 and 13870975 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (253709459) 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, 126854709 + 126854710.

It is an arithmetic number, because the mean of its divisors is an integer number (126854710).

Almost surely, 2^253709419 is an apocalyptic number.

253709419 is a deficient number, since it is larger than the sum of its proper divisors (1).

253709419 is an equidigital number, since it uses as much as digits as its factorization.

253709419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 253709419 is about 15928.2585049339. The cubic root of 253709419 is about 633.0609574537.

The spelling of 253709419 in words is "two hundred fifty-three million, seven hundred nine thousand, four hundred nineteen".