13115750 has 32 divisors (see below), whose sum is σ = 25631424. Its totient is φ = 5016000.

The previous prime is 13115747. The next prime is 13115783. The reversal of 13115750 is 5751131.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4610 + ... + 6890.

It is an arithmetic number, because the mean of its divisors is an integer number (800982).

Almost surely, 2^13115750 is an apocalyptic number.

13115750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13115750 is a deficient number, since it is larger than the sum of its proper divisors (12515674).

13115750 is a wasteful number, since it uses less digits than its factorization.

13115750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321 (or 2311 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 13115750 is about 3621.5673402548. The cubic root of 13115750 is about 235.8292718095.

Adding to 13115750 its reverse (5751131), we get a palindrome (18866881).

The spelling of 13115750 in words is "thirteen million, one hundred fifteen thousand, seven hundred fifty".