142120827 has 12 divisors (see below), whose sum is σ = 205878400. Its totient is φ = 94473648.

The previous prime is 142120813. The next prime is 142120829. The reversal of 142120827 is 728021241.

It is not a de Polignac number, because 142120827 - 2⁸ = 142120571 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 142120827.

It is not an unprimeable number, because it can be changed into a prime (142120829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19483 + ... + 25764.

Almost surely, 2^142120827 is an apocalyptic number.

142120827 is a deficient number, since it is larger than the sum of its proper divisors (63757573).

142120827 is a wasteful number, since it uses less digits than its factorization.

142120827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45602 (or 45599 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 142120827 is about 11921.4439981069. The cubic root of 142120827 is about 521.8582761419.

The spelling of 142120827 in words is "one hundred forty-two million, one hundred twenty thousand, eight hundred twenty-seven".