142215563 has 8 divisors (see below), whose sum is σ = 164590080. Its totient is φ = 120355560.

The previous prime is 142215539. The next prime is 142215571. The reversal of 142215563 is 365512241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142215563 - 2¹⁰ = 142214539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142215533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128033 + ... + 129138.

It is an arithmetic number, because the mean of its divisors is an integer number (20573760).

Almost surely, 2^142215563 is an apocalyptic number.

142215563 is a deficient number, since it is larger than the sum of its proper divisors (22374517).

142215563 is an equidigital number, since it uses as much as digits as its factorization.

142215563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257257.

The product of its digits is 7200, while the sum is 29.

The square root of 142215563 is about 11925.4166803513. The cubic root of 142215563 is about 521.9742051619.

The spelling of 142215563 in words is "one hundred forty-two million, two hundred fifteen thousand, five hundred sixty-three".