282232139 has 4 divisors (see below), whose sum is σ = 322551024. Its totient is φ = 241913256.

The previous prime is 282232129. The next prime is 282232141. The reversal of 282232139 is 931232282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 282232139 - 2⁸ = 282231883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282232109) 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, 20159432 + ... + 20159445.

It is an arithmetic number, because the mean of its divisors is an integer number (80637756).

Almost surely, 2^282232139 is an apocalyptic number.

282232139 is a deficient number, since it is larger than the sum of its proper divisors (40318885).

282232139 is an equidigital number, since it uses as much as digits as its factorization.

282232139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40318884.

The product of its digits is 10368, while the sum is 32.

The square root of 282232139 is about 16799.7660400376. The cubic root of 282232139 is about 655.9471091541.

The spelling of 282232139 in words is "two hundred eighty-two million, two hundred thirty-two thousand, one hundred thirty-nine".