117190487 has 2 divisors, whose sum is σ = 117190488. Its totient is φ = 117190486.

The previous prime is 117190481. The next prime is 117190501. The reversal of 117190487 is 784091711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117190487 - 2⁴ = 117190471 is a prime.

It is a super-2 number, since 2×117190487² = 27467220486594338, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117190487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117190481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58595243 + 58595244.

It is an arithmetic number, because the mean of its divisors is an integer number (58595244).

Almost surely, 2^117190487 is an apocalyptic number.

117190487 is a deficient number, since it is larger than the sum of its proper divisors (1).

117190487 is an equidigital number, since it uses as much as digits as its factorization.

117190487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 38.

The square root of 117190487 is about 10825.4555100467. The cubic root of 117190487 is about 489.3626128742.

The spelling of 117190487 in words is "one hundred seventeen million, one hundred ninety thousand, four hundred eighty-seven".