31124673 has 6 divisors (see below), whose sum is σ = 44957874. Its totient is φ = 20749776.

The previous prime is 31124633. The next prime is 31124689. The reversal of 31124673 is 37642113.

It can be written as a sum of positive squares in only one way, i.e., 23155344 + 7969329 = 4812^2 + 2823^2 .

It is not a de Polignac number, because 31124673 - 2⁶ = 31124609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31124633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1729140 + ... + 1729157.

It is an arithmetic number, because the mean of its divisors is an integer number (7492979).

Almost surely, 2^31124673 is an apocalyptic number.

It is an amenable number.

31124673 is a deficient number, since it is larger than the sum of its proper divisors (13833201).

31124673 is a wasteful number, since it uses less digits than its factorization.

31124673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458303 (or 3458300 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 31124673 is about 5578.9490945876. The cubic root of 31124673 is about 314.5586259833.

Adding to 31124673 its reverse (37642113), we get a palindrome (68766786).

The spelling of 31124673 in words is "thirty-one million, one hundred twenty-four thousand, six hundred seventy-three".