45051449 has 4 divisors (see below), whose sum is σ = 45312036. Its totient is φ = 44790864.

The previous prime is 45051421. The next prime is 45051473. The reversal of 45051449 is 94415054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94415054 = 2 ⋅47207527.

It can be written as a sum of positive squares in 2 ways, for example, as 41925625 + 3125824 = 6475^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 45051449 - 2²⁰ = 44002873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45051499) 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, 130034 + ... + 130379.

It is an arithmetic number, because the mean of its divisors is an integer number (11328009).

Almost surely, 2^45051449 is an apocalyptic number.

It is an amenable number.

45051449 is a deficient number, since it is larger than the sum of its proper divisors (260587).

45051449 is a wasteful number, since it uses less digits than its factorization.

45051449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260586.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 45051449 is about 6712.0376190841. The cubic root of 45051449 is about 355.8248333427.

The spelling of 45051449 in words is "forty-five million, fifty-one thousand, four hundred forty-nine".