822140331 has 4 divisors (see below), whose sum is σ = 1096187112. Its totient is φ = 548093552.

The previous prime is 822140327. The next prime is 822140357. The reversal of 822140331 is 133041228.

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 822140331 - 2² = 822140327 is a prime.

It is a super-2 number, since 2×822140331² = 1351829447713579122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (822140531) 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, 137023386 + ... + 137023391.

It is an arithmetic number, because the mean of its divisors is an integer number (274046778).

Almost surely, 2^822140331 is an apocalyptic number.

822140331 is a deficient number, since it is larger than the sum of its proper divisors (274046781).

822140331 is a wasteful number, since it uses less digits than its factorization.

822140331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274046780.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 822140331 is about 28672.9895720694. The cubic root of 822140331 is about 936.8038160867.

Adding to 822140331 its reverse (133041228), we get a palindrome (955181559).

The spelling of 822140331 in words is "eight hundred twenty-two million, one hundred forty thousand, three hundred thirty-one".