13790045 has 8 divisors (see below), whose sum is σ = 16606296. Its totient is φ = 10993216.

The previous prime is 13790039. The next prime is 13790047. The reversal of 13790045 is 54009731.

It can be written as a sum of positive squares in 4 ways, for example, as 9375844 + 4414201 = 3062^2 + 2101^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13790045 - 2¹² = 13785949 is a prime.

It is a super-2 number, since 2×13790045² = 380330682204050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13790047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3242 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (2075787).

Almost surely, 2^13790045 is an apocalyptic number.

It is an amenable number.

13790045 is a deficient number, since it is larger than the sum of its proper divisors (2816251).

13790045 is an equidigital number, since it uses as much as digits as its factorization.

13790045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

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

The square root of 13790045 is about 3713.4949845126. The cubic root of 13790045 is about 239.8033400550.

Adding to 13790045 its reverse (54009731), we get a palindrome (67799776).

The spelling of 13790045 in words is "thirteen million, seven hundred ninety thousand, forty-five".