142044663 has 4 divisors (see below), whose sum is σ = 189392888. Its totient is φ = 94696440.

The previous prime is 142044653. The next prime is 142044701. The reversal of 142044663 is 366440241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366440241 = 3 ⋅122146747.

It is not a de Polignac number, because 142044663 - 2⁴ = 142044647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142044663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142044653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23674108 + ... + 23674113.

It is an arithmetic number, because the mean of its divisors is an integer number (47348222).

Almost surely, 2^142044663 is an apocalyptic number.

142044663 is a deficient number, since it is larger than the sum of its proper divisors (47348225).

142044663 is an equidigital number, since it uses as much as digits as its factorization.

142044663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47348224.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 142044663 is about 11918.2491583286. The cubic root of 142044663 is about 521.7650364271.

The spelling of 142044663 in words is "one hundred forty-two million, forty-four thousand, six hundred sixty-three".