45540743 has 4 divisors (see below), whose sum is σ = 46312680. Its totient is φ = 44768808.

The previous prime is 45540731. The next prime is 45540751. The reversal of 45540743 is 34704554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34704554 = 2 ⋅17352277.

It is a cyclic number.

It is not a de Polignac number, because 45540743 - 2⁶ = 45540679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45540043) 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, 385880 + ... + 385997.

It is an arithmetic number, because the mean of its divisors is an integer number (11578170).

Almost surely, 2^45540743 is an apocalyptic number.

45540743 is a deficient number, since it is larger than the sum of its proper divisors (771937).

45540743 is an equidigital number, since it uses as much as digits as its factorization.

45540743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771936.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 45540743 is about 6748.3881779281. The cubic root of 45540743 is about 357.1083764730.

The spelling of 45540743 in words is "forty-five million, five hundred forty thousand, seven hundred forty-three".