117237399 has 4 divisors (see below), whose sum is σ = 156316536. Its totient is φ = 78158264.

The previous prime is 117237397. The next prime is 117237403. The reversal of 117237399 is 993732711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993732711 = 3 ⋅331244237.

It is a cyclic number.

It is not a de Polignac number, because 117237399 - 2¹ = 117237397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117237399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117237397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19539564 + ... + 19539569.

It is an arithmetic number, because the mean of its divisors is an integer number (39079134).

Almost surely, 2^117237399 is an apocalyptic number.

117237399 is a deficient number, since it is larger than the sum of its proper divisors (39079137).

117237399 is an equidigital number, since it uses as much as digits as its factorization.

117237399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39079136.

The product of its digits is 71442, while the sum is 42.

The square root of 117237399 is about 10827.6220381024. The cubic root of 117237399 is about 489.4279023498.

The spelling of 117237399 in words is "one hundred seventeen million, two hundred thirty-seven thousand, three hundred ninety-nine".