4145423 has 2 divisors, whose sum is σ = 4145424. Its totient is φ = 4145422.

The previous prime is 4145419. The next prime is 4145459. The reversal of 4145423 is 3245414.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4145423 - 2² = 4145419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4145473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072711 + 2072712.

It is an arithmetic number, because the mean of its divisors is an integer number (2072712).

Almost surely, 2^4145423 is an apocalyptic number.

4145423 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145423 is an equidigital number, since it uses as much as digits as its factorization.

4145423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 23.

The square root of 4145423 is about 2036.0311883662. The cubic root of 4145423 is about 160.6409575510.

Subtracting from 4145423 its reverse (3245414), we obtain a palindrome (900009).

The spelling of 4145423 in words is "four million, one hundred forty-five thousand, four hundred twenty-three".