142144663 has 4 divisors (see below), whose sum is σ = 145611648. Its totient is φ = 138677680.

The previous prime is 142144661. The next prime is 142144697. The reversal of 142144663 is 366441241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142144663 - 2¹ = 142144661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142144661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733431 + ... + 1733512.

It is an arithmetic number, because the mean of its divisors is an integer number (36402912).

Almost surely, 2^142144663 is an apocalyptic number.

142144663 is a deficient number, since it is larger than the sum of its proper divisors (3466985).

142144663 is an equidigital number, since it uses as much as digits as its factorization.

142144663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466984.

The product of its digits is 13824, while the sum is 31.

The square root of 142144663 is about 11922.4436673024. The cubic root of 142144663 is about 521.8874492494.

The spelling of 142144663 in words is "one hundred forty-two million, one hundred forty-four thousand, six hundred sixty-three".