117852737 has 4 divisors (see below), whose sum is σ = 120727236. Its totient is φ = 114978240.

The previous prime is 117852719. The next prime is 117852739. The reversal of 117852737 is 737258711.

It is a Cunningham number, because it is equal to 10856²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737258711 = 7 ⋅105322673.

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 112169281 = 2384^2 + 10591^2 .

It is a cyclic number.

It is not a de Polignac number, because 117852737 - 2⁶ = 117852673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2874457 = 117852737 / (1 + 1 + 7 + 8 + 5 + 2 + 7 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117852694 and 117852703.

It is not an unprimeable number, because it can be changed into a prime (117852739) 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, 1437188 + ... + 1437269.

It is an arithmetic number, because the mean of its divisors is an integer number (30181809).

Almost surely, 2^117852737 is an apocalyptic number.

It is an amenable number.

117852737 is a deficient number, since it is larger than the sum of its proper divisors (2874499).

117852737 is an equidigital number, since it uses as much as digits as its factorization.

117852737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874498.

The product of its digits is 82320, while the sum is 41.

The square root of 117852737 is about 10856.0000460575. Note that the first 4 decimals coincide. The cubic root of 117852737 is about 490.2826870843.

The spelling of 117852737 in words is "one hundred seventeen million, eight hundred fifty-two thousand, seven hundred thirty-seven".