45153723 has 4 divisors (see below), whose sum is σ = 60204968. Its totient is φ = 30102480.

The previous prime is 45153677. The next prime is 45153739. The reversal of 45153723 is 32735154.

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

It is not a de Polignac number, because 45153723 - 2⁶ = 45153659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45153223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7525618 + ... + 7525623.

It is an arithmetic number, because the mean of its divisors is an integer number (15051242).

Almost surely, 2^45153723 is an apocalyptic number.

45153723 is a deficient number, since it is larger than the sum of its proper divisors (15051245).

45153723 is a wasteful number, since it uses less digits than its factorization.

45153723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15051244.

The product of its digits is 12600, while the sum is 30.

The square root of 45153723 is about 6719.6519999179. The cubic root of 45153723 is about 356.0938896196.

Adding to 45153723 its reverse (32735154), we get a palindrome (77888877).

The spelling of 45153723 in words is "forty-five million, one hundred fifty-three thousand, seven hundred twenty-three".