45745451 has 4 divisors (see below), whose sum is σ = 46150392. Its totient is φ = 45340512.

The previous prime is 45745417. The next prime is 45745457. The reversal of 45745451 is 15454754.

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

It is a cyclic number.

It is not a de Polignac number, because 45745451 - 2⁶ = 45745387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45745457) 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, 202301 + ... + 202526.

It is an arithmetic number, because the mean of its divisors is an integer number (11537598).

Almost surely, 2^45745451 is an apocalyptic number.

45745451 is a deficient number, since it is larger than the sum of its proper divisors (404941).

45745451 is a wasteful number, since it uses less digits than its factorization.

45745451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404940.

The product of its digits is 56000, while the sum is 35.

The square root of 45745451 is about 6763.5383491188. The cubic root of 45745451 is about 357.6426502947.

The spelling of 45745451 in words is "forty-five million, seven hundred forty-five thousand, four hundred fifty-one".