31114224 has 30 divisors (see below), whose sum is σ = 87077016. Its totient is φ = 10371360.

The previous prime is 31114189. The next prime is 31114249. The reversal of 31114224 is 42241113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31114197 and 31114206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107892 + ... + 108179.

Almost surely, 2^31114224 is an apocalyptic number.

It is an amenable number.

31114224 is an abundant number, since it is smaller than the sum of its proper divisors (55962792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31114224 is a wasteful number, since it uses less digits than its factorization.

31114224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216085 (or 216076 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 31114224 is about 5578.0125492867. The cubic root of 31114224 is about 314.5234214264.

Adding to 31114224 its reverse (42241113), we get a palindrome (73355337).

It can be divided in two parts, 311 and 14224, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 31114224 in words is "thirty-one million, one hundred fourteen thousand, two hundred twenty-four".