142877863 has 16 divisors (see below), whose sum is σ = 154725120. Its totient is φ = 131592384.

The previous prime is 142877857. The next prime is 142877869. The reversal of 142877863 is 368778241.

It is an interprime number because it is at equal distance from previous prime (142877857) and next prime (142877869).

It is a de Polignac number, because none of the positive numbers 2^k-142877863 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 (142877869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71208 + ... + 73186.

It is an arithmetic number, because the mean of its divisors is an integer number (9670320).

Almost surely, 2^142877863 is an apocalyptic number.

142877863 is a deficient number, since it is larger than the sum of its proper divisors (11847257).

142877863 is a wasteful number, since it uses less digits than its factorization.

142877863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118.

The product of its digits is 451584, while the sum is 46.

The square root of 142877863 is about 11953.1528476800. The cubic root of 142877863 is about 522.7832311319.

The spelling of 142877863 in words is "one hundred forty-two million, eight hundred seventy-seven thousand, eight hundred sixty-three".