45720133 has 4 divisors (see below), whose sum is σ = 47195008. Its totient is φ = 44245260.

The previous prime is 45720131. The next prime is 45720149. The reversal of 45720133 is 33102754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33102754 = 2 ⋅16551377.

It is a cyclic number.

It is not a de Polignac number, because 45720133 - 2¹ = 45720131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45720098 and 45720107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45720131) 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, 737391 + ... + 737452.

It is an arithmetic number, because the mean of its divisors is an integer number (11798752).

Almost surely, 2^45720133 is an apocalyptic number.

It is an amenable number.

45720133 is a deficient number, since it is larger than the sum of its proper divisors (1474875).

45720133 is a wasteful number, since it uses less digits than its factorization.

45720133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474874.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 45720133 is about 6761.6664366116. Note that the first 3 decimals coincide. The cubic root of 45720133 is about 357.5766585410.

Adding to 45720133 its reverse (33102754), we get a palindrome (78822887).

The spelling of 45720133 in words is "forty-five million, seven hundred twenty thousand, one hundred thirty-three".