13090745 has 8 divisors (see below), whose sum is σ = 16250760. Its totient is φ = 10111360.

The previous prime is 13090729. The next prime is 13090757. The reversal of 13090745 is 54709031.

It can be written as a sum of positive squares in 4 ways, for example, as 1585081 + 11505664 = 1259^2 + 3392^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13090745 - 2⁴ = 13090729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44996 + ... + 45285.

It is an arithmetic number, because the mean of its divisors is an integer number (2031345).

Almost surely, 2^13090745 is an apocalyptic number.

It is an amenable number.

13090745 is a deficient number, since it is larger than the sum of its proper divisors (3160015).

13090745 is an equidigital number, since it uses as much as digits as its factorization.

13090745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90315.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 13090745 is about 3618.1134586964. The cubic root of 13090745 is about 235.6793080287.

Adding to 13090745 its reverse (54709031), we get a palindrome (67799776).

The spelling of 13090745 in words is "thirteen million, ninety thousand, seven hundred forty-five".