142494823 has 2 divisors, whose sum is σ = 142494824. Its totient is φ = 142494822.

The previous prime is 142494811. The next prime is 142494827. The reversal of 142494823 is 328494241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142494823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142494827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71247411 + 71247412.

It is an arithmetic number, because the mean of its divisors is an integer number (71247412).

Almost surely, 2^142494823 is an apocalyptic number.

142494823 is a deficient number, since it is larger than the sum of its proper divisors (1).

142494823 is an equidigital number, since it uses as much as digits as its factorization.

142494823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The square root of 142494823 is about 11937.1195436755. The cubic root of 142494823 is about 522.3156380461.

The spelling of 142494823 in words is "one hundred forty-two million, four hundred ninety-four thousand, eight hundred twenty-three".