45291385 has 4 divisors (see below), whose sum is σ = 54349668. Its totient is φ = 36233104.

The previous prime is 45291377. The next prime is 45291401. The reversal of 45291385 is 58319254.

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 29387241 + 15904144 = 5421^2 + 3988^2 .

It is a cyclic number.

It is not a de Polignac number, because 45291385 - 2³ = 45291377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4529134 + ... + 4529143.

It is an arithmetic number, because the mean of its divisors is an integer number (13587417).

Almost surely, 2^45291385 is an apocalyptic number.

It is an amenable number.

45291385 is a deficient number, since it is larger than the sum of its proper divisors (9058283).

45291385 is an equidigital number, since it uses as much as digits as its factorization.

45291385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058282.

The product of its digits is 43200, while the sum is 37.

The square root of 45291385 is about 6729.8874433381. The cubic root of 45291385 is about 356.4554018121.

The spelling of 45291385 in words is "forty-five million, two hundred ninety-one thousand, three hundred eighty-five".