31124214 has 48 divisors (see below), whose sum is σ = 74041344. Its totient is φ = 9370800.

The previous prime is 31124201. The next prime is 31124237. The reversal of 31124214 is 41242113.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37407 + ... + 38229.

It is an arithmetic number, because the mean of its divisors is an integer number (1542528).

Almost surely, 2^31124214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31124214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37020672).

31124214 is an abundant number, since it is smaller than the sum of its proper divisors (42917130).

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

31124214 is a wasteful number, since it uses less digits than its factorization.

31124214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1030 counting only the distinct ones).

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

The square root of 31124214 is about 5578.9079576562. The cubic root of 31124214 is about 314.5570796953.

Adding to 31124214 its reverse (41242113), we get a palindrome (72366327).

The spelling of 31124214 in words is "thirty-one million, one hundred twenty-four thousand, two hundred fourteen".