82243031 has 16 divisors (see below), whose sum is σ = 92494080. Its totient is φ = 72610560.

The previous prime is 82243019. The next prime is 82243033. The reversal of 82243031 is 13034228.

It is a cyclic number.

It is not a de Polignac number, because 82243031 - 2¹⁴ = 82226647 is a prime.

It is a super-2 number, since 2×82243031² = 13527832296133922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82242988 and 82243006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82243033) 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, 34721 + ... + 37013.

It is an arithmetic number, because the mean of its divisors is an integer number (5780880).

Almost surely, 2^82243031 is an apocalyptic number.

82243031 is a deficient number, since it is larger than the sum of its proper divisors (10251049).

82243031 is a wasteful number, since it uses less digits than its factorization.

82243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 82243031 is about 9068.7943520625. The cubic root of 82243031 is about 434.8769299970.

Adding to 82243031 its reverse (13034228), we get a palindrome (95277259).

The spelling of 82243031 in words is "eighty-two million, two hundred forty-three thousand, thirty-one".