45243591 has 4 divisors (see below), whose sum is σ = 60324792. Its totient is φ = 30162392.

The previous prime is 45243589. The next prime is 45243593. The reversal of 45243591 is 19534254.

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

It is an interprime number because it is at equal distance from previous prime (45243589) and next prime (45243593).

It is a cyclic number.

It is not a de Polignac number, because 45243591 - 2¹ = 45243589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45243593) 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, 7540596 + ... + 7540601.

It is an arithmetic number, because the mean of its divisors is an integer number (15081198).

Almost surely, 2^45243591 is an apocalyptic number.

45243591 is a deficient number, since it is larger than the sum of its proper divisors (15081201).

45243591 is a wasteful number, since it uses less digits than its factorization.

45243591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15081200.

The product of its digits is 21600, while the sum is 33.

The square root of 45243591 is about 6726.3356294494. The cubic root of 45243591 is about 356.3299737968.

The spelling of 45243591 in words is "forty-five million, two hundred forty-three thousand, five hundred ninety-one".