13046545 has 4 divisors (see below), whose sum is σ = 15655860. Its totient is φ = 10437232.

The previous prime is 13046513. The next prime is 13046581. The reversal of 13046545 is 54564031.

It is a Cunningham number, because it is equal to 3612²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4700224 + 8346321 = 2168^2 + 2889^2 .

It is a cyclic number.

It is not a de Polignac number, because 13046545 - 2⁵ = 13046513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304650 + ... + 1304659.

It is an arithmetic number, because the mean of its divisors is an integer number (3913965).

Almost surely, 2^13046545 is an apocalyptic number.

It is an amenable number.

13046545 is a deficient number, since it is larger than the sum of its proper divisors (2609315).

13046545 is an equidigital number, since it uses as much as digits as its factorization.

13046545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609314.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 13046545 is about 3612.0001384275. Note that the first 3 decimals coincide. The cubic root of 13046545 is about 235.4137572756.

The spelling of 13046545 in words is "thirteen million, forty-six thousand, five hundred forty-five".