117990511 has 4 divisors (see below), whose sum is σ = 118053000. Its totient is φ = 117928024.

The previous prime is 117990491. The next prime is 117990541. The reversal of 117990511 is 115099711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115099711 = 37 ⋅3110803.

It is a cyclic number.

It is not a de Polignac number, because 117990511 - 2¹⁵ = 117957743 is a prime.

It is a super-2 number, since 2×117990511² = 27843521372082242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117990541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28321 + ... + 32218.

It is an arithmetic number, because the mean of its divisors is an integer number (29513250).

Almost surely, 2^117990511 is an apocalyptic number.

117990511 is a deficient number, since it is larger than the sum of its proper divisors (62489).

117990511 is an equidigital number, since it uses as much as digits as its factorization.

117990511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62488.

The product of its (nonzero) digits is 2835, while the sum is 34.

The square root of 117990511 is about 10862.3437157917. The cubic root of 117990511 is about 490.4736652594.

The spelling of 117990511 in words is "one hundred seventeen million, nine hundred ninety thousand, five hundred eleven".