117415982 has 4 divisors (see below), whose sum is σ = 176123976. Its totient is φ = 58707990.

The previous prime is 117415981. The next prime is 117415997. The reversal of 117415982 is 289514711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289514711 = 59 ⋅4907029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117415981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29353994 + ... + 29353997.

It is an arithmetic number, because the mean of its divisors is an integer number (44030994).

Almost surely, 2^117415982 is an apocalyptic number.

117415982 is a deficient number, since it is larger than the sum of its proper divisors (58707994).

117415982 is an equidigital number, since it uses as much as digits as its factorization.

117415982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58707993.

The product of its digits is 20160, while the sum is 38.

The square root of 117415982 is about 10835.8655399557. The cubic root of 117415982 is about 489.6762848680.

The spelling of 117415982 in words is "one hundred seventeen million, four hundred fifteen thousand, nine hundred eighty-two".