117773775 has 144 divisors (see below), whose sum is σ = 258745344. Its totient is φ = 50077440.

The previous prime is 117773759. The next prime is 117773783. The reversal of 117773775 is 577377711.

It is not a de Polignac number, because 117773775 - 2⁴ = 117773759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 117773775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2505802 + ... + 2505848.

Almost surely, 2^117773775 is an apocalyptic number.

117773775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117773775 is an abundant number, since it is smaller than the sum of its proper divisors (140971569).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117773775 is a wasteful number, since it uses less digits than its factorization.

117773775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 142 counting only the distinct ones).

The product of its digits is 252105, while the sum is 45.

The square root of 117773775 is about 10852.3626459864. The cubic root of 117773775 is about 490.1731652299.

The spelling of 117773775 in words is "one hundred seventeen million, seven hundred seventy-three thousand, seven hundred seventy-five".