117025591 has 2 divisors, whose sum is σ = 117025592. Its totient is φ = 117025590.

The previous prime is 117025567. The next prime is 117025607. The reversal of 117025591 is 195520711.

It is a strong prime.

It is an emirp because it is prime and its reverse (195520711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117025591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117025291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58512795 + 58512796.

It is an arithmetic number, because the mean of its divisors is an integer number (58512796).

Almost surely, 2^117025591 is an apocalyptic number.

117025591 is a deficient number, since it is larger than the sum of its proper divisors (1).

117025591 is an equidigital number, since it uses as much as digits as its factorization.

117025591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 31.

The square root of 117025591 is about 10817.8367061072. The cubic root of 117025591 is about 489.1329815659.

The spelling of 117025591 in words is "one hundred seventeen million, twenty-five thousand, five hundred ninety-one".