117131519 has 2 divisors, whose sum is σ = 117131520. Its totient is φ = 117131518.

The previous prime is 117131503. The next prime is 117131533. The reversal of 117131519 is 915131711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117131519 - 2⁴ = 117131503 is a prime.

It is a super-2 number, since 2×117131519² = 27439585486494722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 117131491 and 117131500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117131549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58565759 + 58565760.

It is an arithmetic number, because the mean of its divisors is an integer number (58565760).

Almost surely, 2^117131519 is an apocalyptic number.

117131519 is a deficient number, since it is larger than the sum of its proper divisors (1).

117131519 is an equidigital number, since it uses as much as digits as its factorization.

117131519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945, while the sum is 29.

The square root of 117131519 is about 10822.7315868038. The cubic root of 117131519 is about 489.2805198173.

The spelling of 117131519 in words is "one hundred seventeen million, one hundred thirty-one thousand, five hundred nineteen".