117138298 has 4 divisors (see below), whose sum is σ = 175707450. Its totient is φ = 58569148.

The previous prime is 117138293. The next prime is 117138299. The reversal of 117138298 is 892831711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 892831711 = 433 ⋅2061967.

It can be written as a sum of positive squares in only one way, i.e., 111788329 + 5349969 = 10573^2 + 2313^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117138298.

It is not an unprimeable number, because it can be changed into a prime (117138293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29284573 + ... + 29284576.

Almost surely, 2^117138298 is an apocalyptic number.

117138298 is a deficient number, since it is larger than the sum of its proper divisors (58569152).

117138298 is an equidigital number, since it uses as much as digits as its factorization.

117138298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58569151.

The product of its digits is 24192, while the sum is 40.

The square root of 117138298 is about 10823.0447656840. The cubic root of 117138298 is about 489.2899586905.

The spelling of 117138298 in words is "one hundred seventeen million, one hundred thirty-eight thousand, two hundred ninety-eight".