45203745 has 32 divisors (see below), whose sum is σ = 74280960. Its totient is φ = 23466240.

The previous prime is 45203737. The next prime is 45203749. The reversal of 45203745 is 54730254.

It is not a de Polignac number, because 45203745 - 2³ = 45203737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45203749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116011 + ... + 116399.

It is an arithmetic number, because the mean of its divisors is an integer number (2321280).

Almost surely, 2^45203745 is an apocalyptic number.

It is an amenable number.

45203745 is a deficient number, since it is larger than the sum of its proper divisors (29077215).

45203745 is a wasteful number, since it uses less digits than its factorization.

45203745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 45203745 is about 6723.3730373972. The cubic root of 45203745 is about 356.2253365505.

Adding to 45203745 its reverse (54730254), we get a palindrome (99933999).

The spelling of 45203745 in words is "forty-five million, two hundred three thousand, seven hundred forty-five".