1142423 has 2 divisors, whose sum is σ = 1142424. Its totient is φ = 1142422.

The previous prime is 1142389. The next prime is 1142431. The reversal of 1142423 is 3242411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142423 - 2⁶ = 1142359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571211 + 571212.

It is an arithmetic number, because the mean of its divisors is an integer number (571212).

2^1142423 is an apocalyptic number.

1142423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142423 is an equidigital number, since it uses as much as digits as its factorization.

1142423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 17.

The square root of 1142423 is about 1068.8418966339. The cubic root of 1142423 is about 104.5383511929.

Adding to 1142423 its reverse (3242411), we get a palindrome (4384834).

The spelling of 1142423 in words is "one million, one hundred forty-two thousand, four hundred twenty-three".