45432451 has 4 divisors (see below), whose sum is σ = 45503752. Its totient is φ = 45361152.

The previous prime is 45432407. The next prime is 45432493. The reversal of 45432451 is 15423454.

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 45432451 - 2⁷ = 45432323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45438451) 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, 34686 + ... + 35971.

It is an arithmetic number, because the mean of its divisors is an integer number (11375938).

Almost surely, 2^45432451 is an apocalyptic number.

45432451 is a deficient number, since it is larger than the sum of its proper divisors (71301).

45432451 is an equidigital number, since it uses as much as digits as its factorization.

45432451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71300.

The product of its digits is 9600, while the sum is 28.

The square root of 45432451 is about 6740.3598568622. The cubic root of 45432451 is about 356.8250940670.

The spelling of 45432451 in words is "forty-five million, four hundred thirty-two thousand, four hundred fifty-one".