117257419 has 2 divisors, whose sum is σ = 117257420. Its totient is φ = 117257418.

The previous prime is 117257401. The next prime is 117257443. The reversal of 117257419 is 914752711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117257419 is a prime.

It is a super-2 number, since 2×117257419² = 27498604621083122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117257479) 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, 58628709 + 58628710.

It is an arithmetic number, because the mean of its divisors is an integer number (58628710).

Almost surely, 2^117257419 is an apocalyptic number.

117257419 is a deficient number, since it is larger than the sum of its proper divisors (1).

117257419 is an equidigital number, since it uses as much as digits as its factorization.

117257419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 37.

The square root of 117257419 is about 10828.5464860248. The cubic root of 117257419 is about 489.4557597542.

The spelling of 117257419 in words is "one hundred seventeen million, two hundred fifty-seven thousand, four hundred nineteen".