13445049 has 4 divisors (see below), whose sum is σ = 17926736. Its totient is φ = 8963364.

The previous prime is 13445039. The next prime is 13445059. The reversal of 13445049 is 94054431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94054431 = 3 ⋅31351477.

It is an interprime number because it is at equal distance from previous prime (13445039) and next prime (13445059).

It is not a de Polignac number, because 13445049 - 2⁵ = 13445017 is a prime.

It is a super-2 number, since 2×13445049² = 361538685224802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13445039) 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, 2240839 + ... + 2240844.

It is an arithmetic number, because the mean of its divisors is an integer number (4481684).

Almost surely, 2^13445049 is an apocalyptic number.

It is an amenable number.

13445049 is a deficient number, since it is larger than the sum of its proper divisors (4481687).

13445049 is an equidigital number, since it uses as much as digits as its factorization.

13445049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481686.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 13445049 is about 3666.7491051339. The cubic root of 13445049 is about 237.7866470636.

The spelling of 13445049 in words is "thirteen million, four hundred forty-five thousand, forty-nine".