45451423 has 2 divisors, whose sum is σ = 45451424. Its totient is φ = 45451422.

The previous prime is 45451403. The next prime is 45451433. The reversal of 45451423 is 32415454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45451423 - 2²¹ = 43354271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45451391 and 45451400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45451403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22725711 + 22725712.

It is an arithmetic number, because the mean of its divisors is an integer number (22725712).

Almost surely, 2^45451423 is an apocalyptic number.

45451423 is a deficient number, since it is larger than the sum of its proper divisors (1).

45451423 is an equidigital number, since it uses as much as digits as its factorization.

45451423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 28.

The square root of 45451423 is about 6741.7670532287. The cubic root of 45451423 is about 356.8747556594.

Adding to 45451423 its reverse (32415454), we get a palindrome (77866877).

The spelling of 45451423 in words is "forty-five million, four hundred fifty-one thousand, four hundred twenty-three".