4142939 has 2 divisors, whose sum is σ = 4142940. Its totient is φ = 4142938.

The previous prime is 4142903. The next prime is 4142947. The reversal of 4142939 is 9392414.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4142939 - 2¹² = 4138843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4142989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071469 + 2071470.

It is an arithmetic number, because the mean of its divisors is an integer number (2071470).

Almost surely, 2^4142939 is an apocalyptic number.

4142939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4142939 is an equidigital number, since it uses as much as digits as its factorization.

4142939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 4142939 is about 2035.4210866550. The cubic root of 4142939 is about 160.6088649783.

The spelling of 4142939 in words is "four million, one hundred forty-two thousand, nine hundred thirty-nine".