31126104 has 96 divisors (see below), whose sum is σ = 90433200. Its totient is φ = 9642240.

The previous prime is 31126097. The next prime is 31126129. The reversal of 31126104 is 40162113.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83262 + ... + 83634.

Almost surely, 2^31126104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31126104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45216600).

31126104 is an abundant number, since it is smaller than the sum of its proper divisors (59307096).

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

31126104 is a wasteful number, since it uses less digits than its factorization.

31126104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 31126104 is about 5579.0773430739. The cubic root of 31126104 is about 314.5634466657.

Adding to 31126104 its reverse (40162113), we get a palindrome (71288217).

It can be divided in two parts, 3112 and 6104, that added together give a square (9216 = 96²).

The spelling of 31126104 in words is "thirty-one million, one hundred twenty-six thousand, one hundred four".