31223482 has 8 divisors (see below), whose sum is σ = 47250036. Its totient is φ = 15473472.

The previous prime is 31223477. The next prime is 31223483. The reversal of 31223482 is 28432213.

It can be written as a sum of positive squares in 2 ways, for example, as 23049601 + 8173881 = 4801^2 + 2859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31223483) 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, 68853 + ... + 69304.

Almost surely, 2^31223482 is an apocalyptic number.

31223482 is a deficient number, since it is larger than the sum of its proper divisors (16026554).

31223482 is a wasteful number, since it uses less digits than its factorization.

31223482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138272.

The product of its digits is 2304, while the sum is 25.

The square root of 31223482 is about 5587.7975983387. The cubic root of 31223482 is about 314.8911423635.

Adding to 31223482 its reverse (28432213), we get a palindrome (59655695).

The spelling of 31223482 in words is "thirty-one million, two hundred twenty-three thousand, four hundred eighty-two".