13045789 has 4 divisors (see below), whose sum is σ = 13054140. Its totient is φ = 13037440.

The previous prime is 13045759. The next prime is 13045801. The reversal of 13045789 is 98754031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98754031 = 103 ⋅958777.

It can be written as a sum of positive squares in 2 ways, for example, as 4536900 + 8508889 = 2130^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 13045789 - 2¹¹ = 13043741 is a prime.

It is a super-2 number, since 2×13045789² = 340385221265042, 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 (13045729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (3263535).

Almost surely, 2^13045789 is an apocalyptic number.

It is an amenable number.

13045789 is a deficient number, since it is larger than the sum of its proper divisors (8351).

13045789 is an equidigital number, since it uses as much as digits as its factorization.

13045789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8350.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 13045789 is about 3611.8954857526. The cubic root of 13045789 is about 235.4092100631.

The spelling of 13045789 in words is "thirteen million, forty-five thousand, seven hundred eighty-nine".