4007123 has 2 divisors, whose sum is σ = 4007124. Its totient is φ = 4007122.

The previous prime is 4007099. The next prime is 4007131. The reversal of 4007123 is 3217004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4007123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4007183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2003561 + 2003562.

It is an arithmetic number, because the mean of its divisors is an integer number (2003562).

Almost surely, 2^4007123 is an apocalyptic number.

4007123 is a deficient number, since it is larger than the sum of its proper divisors (1).

4007123 is an equidigital number, since it uses as much as digits as its factorization.

4007123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 4007123 is about 2001.7799579374. The cubic root of 4007123 is about 158.8342748022.

The spelling of 4007123 in words is "four million, seven thousand, one hundred twenty-three".