31463243 has 24 divisors (see below), whose sum is σ = 39226032. Its totient is φ = 25073664.

The previous prime is 31463227. The next prime is 31463249. The reversal of 31463243 is 34236413.

It is a happy number.

It is not a de Polignac number, because 31463243 - 2⁴ = 31463227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31463249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88955 + ... + 89307.

It is an arithmetic number, because the mean of its divisors is an integer number (1634418).

Almost surely, 2^31463243 is an apocalyptic number.

31463243 is a deficient number, since it is larger than the sum of its proper divisors (7762789).

31463243 is a wasteful number, since it uses less digits than its factorization.

31463243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 484 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

The square root of 31463243 is about 5609.2105505142. The cubic root of 31463243 is about 315.6950905738.

Adding to 31463243 its reverse (34236413), we get a palindrome (65699656).

The spelling of 31463243 in words is "thirty-one million, four hundred sixty-three thousand, two hundred forty-three".