45121453 has 4 divisors (see below), whose sum is σ = 48592348. Its totient is φ = 41650560.

The previous prime is 45121441. The next prime is 45121481. The reversal of 45121453 is 35412154.

It is a happy number.

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 6953769 + 38167684 = 2637^2 + 6178^2 .

It is a cyclic number.

It is not a de Polignac number, because 45121453 - 2¹³ = 45113261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45125453) 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, 1735428 + ... + 1735453.

It is an arithmetic number, because the mean of its divisors is an integer number (12148087).

Almost surely, 2^45121453 is an apocalyptic number.

It is an amenable number.

45121453 is a deficient number, since it is larger than the sum of its proper divisors (3470895).

45121453 is a wasteful number, since it uses less digits than its factorization.

45121453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470894.

The product of its digits is 2400, while the sum is 25.

The square root of 45121453 is about 6717.2504047415. The cubic root of 45121453 is about 356.0090395592.

It can be divided in two parts, 451 and 21453, that added together give a square (21904 = 148²).

The spelling of 45121453 in words is "forty-five million, one hundred twenty-one thousand, four hundred fifty-three".