117497901 has 4 divisors (see below), whose sum is σ = 156663872. Its totient is φ = 78331932.

The previous prime is 117497867. The next prime is 117497909. The reversal of 117497901 is 109794711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 117497901 - 2⁶ = 117497837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117497901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117497909) 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, 19582981 + ... + 19582986.

It is an arithmetic number, because the mean of its divisors is an integer number (39165968).

Almost surely, 2^117497901 is an apocalyptic number.

It is an amenable number.

117497901 is a deficient number, since it is larger than the sum of its proper divisors (39165971).

117497901 is an equidigital number, since it uses as much as digits as its factorization.

117497901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39165970.

The product of its (nonzero) digits is 15876, while the sum is 39.

The square root of 117497901 is about 10839.6448742567. The cubic root of 117497901 is about 489.7901378138.

The spelling of 117497901 in words is "one hundred seventeen million, four hundred ninety-seven thousand, nine hundred one".