45456413 has 4 divisors (see below), whose sum is σ = 46565148. Its totient is φ = 44347680.

The previous prime is 45456403. The next prime is 45456421. The reversal of 45456413 is 31465454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31465454 = 2 ⋅15732727.

It can be written as a sum of positive squares in 2 ways, for example, as 2067844 + 43388569 = 1438^2 + 6587^2 .

It is a cyclic number.

It is not a de Polignac number, because 45456413 - 2²⁰ = 44407837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45456413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45456403) 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, 554306 + ... + 554387.

It is an arithmetic number, because the mean of its divisors is an integer number (11641287).

Almost surely, 2^45456413 is an apocalyptic number.

It is an amenable number.

45456413 is a deficient number, since it is larger than the sum of its proper divisors (1108735).

45456413 is a wasteful number, since it uses less digits than its factorization.

45456413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108734.

The product of its digits is 28800, while the sum is 32.

The square root of 45456413 is about 6742.1371240876. The cubic root of 45456413 is about 356.8878153155.

The spelling of 45456413 in words is "forty-five million, four hundred fifty-six thousand, four hundred thirteen".