117604145 has 8 divisors (see below), whose sum is σ = 141301800. Its totient is φ = 93965440.

The previous prime is 117604139. The next prime is 117604177. The reversal of 117604145 is 541406711.

It can be written as a sum of positive squares in 4 ways, for example, as 3904576 + 113699569 = 1976^2 + 10663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117604145 - 2¹⁶ = 117538609 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10220 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (17662725).

Almost surely, 2^117604145 is an apocalyptic number.

It is an amenable number.

117604145 is a deficient number, since it is larger than the sum of its proper divisors (23697655).

117604145 is an equidigital number, since it uses as much as digits as its factorization.

117604145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29475.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 117604145 is about 10844.5444809821. The cubic root of 117604145 is about 489.9377194201.

Subtracting from 117604145 its sum of digits (29), we obtain a triangular number (117604116 = T₁₅₃₃₆).

The spelling of 117604145 in words is "one hundred seventeen million, six hundred four thousand, one hundred forty-five".