13117502 has 4 divisors (see below), whose sum is σ = 19676256. Its totient is φ = 6558750.

The previous prime is 13117487. The next prime is 13117519. The reversal of 13117502 is 20571131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3279374 + ... + 3279377.

It is an arithmetic number, because the mean of its divisors is an integer number (4919064).

Almost surely, 2^13117502 is an apocalyptic number.

13117502 is a deficient number, since it is larger than the sum of its proper divisors (6558754).

13117502 is an equidigital number, since it uses as much as digits as its factorization.

13117502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6558753.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 13117502 is about 3621.8092164000. The cubic root of 13117502 is about 235.8397720221.

Adding to 13117502 its reverse (20571131), we get a palindrome (33688633).

The spelling of 13117502 in words is "thirteen million, one hundred seventeen thousand, five hundred two".