142162873 has 4 divisors (see below), whose sum is σ = 142273780. Its totient is φ = 142051968.

The previous prime is 142162871. The next prime is 142162877. The reversal of 142162873 is 378261241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 378261241 = 16487 ⋅22943.

It can be written as a sum of positive squares in 2 ways, for example, as 138368169 + 3794704 = 11763^2 + 1948^2 .

It is a cyclic number.

It is not a de Polignac number, because 142162873 - 2¹ = 142162871 is a prime.

It is a super-2 number, since 2×142162873² = 40420564919228258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142162871) 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, 53508 + ... + 56101.

It is an arithmetic number, because the mean of its divisors is an integer number (35568445).

Almost surely, 2^142162873 is an apocalyptic number.

It is an amenable number.

142162873 is a deficient number, since it is larger than the sum of its proper divisors (110907).

142162873 is a wasteful number, since it uses less digits than its factorization.

142162873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110906.

The product of its digits is 16128, while the sum is 34.

The square root of 142162873 is about 11923.2073285673. The cubic root of 142162873 is about 521.9097344446.

The spelling of 142162873 in words is "one hundred forty-two million, one hundred sixty-two thousand, eight hundred seventy-three".