31128114 has 8 divisors (see below), whose sum is σ = 62256240. Its totient is φ = 10376036.

The previous prime is 31128091. The next prime is 31128127. The reversal of 31128114 is 41182113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

31128114 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594004 + ... + 2594015.

It is an arithmetic number, because the mean of its divisors is an integer number (7782030).

Almost surely, 2^31128114 is an apocalyptic number.

31128114 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31128114 is a wasteful number, since it uses less digits than its factorization.

31128114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188024.

The product of its digits is 192, while the sum is 21.

The square root of 31128114 is about 5579.2574774785. The cubic root of 31128114 is about 314.5702176054.

The spelling of 31128114 in words is "thirty-one million, one hundred twenty-eight thousand, one hundred fourteen".