142247163 has 16 divisors (see below), whose sum is σ = 196761600. Its totient is φ = 91341120.

The previous prime is 142247153. The next prime is 142247197. The reversal of 142247163 is 361742241.

It is not a de Polignac number, because 142247163 - 2²⁴ = 125469947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142247163.

It is not an unprimeable number, because it can be changed into a prime (142247153) 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, 2398 + ... + 17036.

It is an arithmetic number, because the mean of its divisors is an integer number (12297600).

Almost surely, 2^142247163 is an apocalyptic number.

142247163 is a deficient number, since it is larger than the sum of its proper divisors (54514437).

142247163 is a wasteful number, since it uses less digits than its factorization.

142247163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14762.

The product of its digits is 8064, while the sum is 30.

The square root of 142247163 is about 11926.7415080566. The cubic root of 142247163 is about 522.0128628236.

The spelling of 142247163 in words is "one hundred forty-two million, two hundred forty-seven thousand, one hundred sixty-three".