45722123 has 4 divisors (see below), whose sum is σ = 46471728. Its totient is φ = 44972520.

The previous prime is 45722111. The next prime is 45722147. The reversal of 45722123 is 32122754.

45722123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32122754 = 2 ⋅16061377.

It is a cyclic number.

It is not a de Polignac number, because 45722123 - 2¹⁰ = 45721099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45722092 and 45722101.

It is not an unprimeable number, because it can be changed into a prime (45722323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374711 + ... + 374832.

It is an arithmetic number, because the mean of its divisors is an integer number (11617932).

Almost surely, 2^45722123 is an apocalyptic number.

45722123 is a deficient number, since it is larger than the sum of its proper divisors (749605).

45722123 is an equidigital number, since it uses as much as digits as its factorization.

45722123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749604.

The product of its digits is 3360, while the sum is 26.

The square root of 45722123 is about 6761.8135880842. The cubic root of 45722123 is about 357.5818463885.

Adding to 45722123 its reverse (32122754), we get a palindrome (77844877).

The spelling of 45722123 in words is "forty-five million, seven hundred twenty-two thousand, one hundred twenty-three".