45450787 has 4 divisors (see below), whose sum is σ = 45961560. Its totient is φ = 44940016.

The previous prime is 45450719. The next prime is 45450791. The reversal of 45450787 is 78705454.

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

It is not a de Polignac number, because 45450787 - 2¹⁹ = 44926499 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45450487) 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, 255253 + ... + 255430.

It is an arithmetic number, because the mean of its divisors is an integer number (11490390).

Almost surely, 2^45450787 is an apocalyptic number.

45450787 is a deficient number, since it is larger than the sum of its proper divisors (510773).

45450787 is an equidigital number, since it uses as much as digits as its factorization.

45450787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510772.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 45450787 is about 6741.7198844212. The cubic root of 45450787 is about 356.8730910734.

The spelling of 45450787 in words is "forty-five million, four hundred fifty thousand, seven hundred eighty-seven".