117485511 has 32 divisors (see below), whose sum is σ = 185213952. Its totient is φ = 65304960.

The previous prime is 117485491. The next prime is 117485539. The reversal of 117485511 is 115584711.

It is not a de Polignac number, because 117485511 - 2¹¹ = 117483463 is a prime.

It is a super-2 number, since 2×117485511² = 27605690589862242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117485111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73426 + ... + 75008.

It is an arithmetic number, because the mean of its divisors is an integer number (5787936).

Almost surely, 2^117485511 is an apocalyptic number.

117485511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117485511 is a deficient number, since it is larger than the sum of its proper divisors (67728441).

117485511 is a wasteful number, since it uses less digits than its factorization.

117485511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783.

The product of its digits is 5600, while the sum is 33.

The square root of 117485511 is about 10839.0733460015. The cubic root of 117485511 is about 489.7729212988.

The spelling of 117485511 in words is "one hundred seventeen million, four hundred eighty-five thousand, five hundred eleven".