Search a number
31148 = 2213599

31148 has 12 divisors (see below), whose sum is σ = 58800. Its totient is φ = 14352.

The previous prime is 31147. The next prime is 31151. The reversal of 31148 is 84113.

It is a happy number.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 31148.

It is not an unprimeable number, because it can be changed into a prime (31147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 351.

It is an arithmetic number, because the mean of its divisors is an integer number (4900).

231148 is an apocalyptic number.

It is an amenable number.

31148 is a deficient number, since it is larger than the sum of its proper divisors (27652).

31148 is a wasteful number, since it uses less digits than its factorization.

31148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 614 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 31148 is about 176.4879599293. The cubic root of 31148 is about 31.4637190415.

The spelling of 31148 in words is "thirty-one thousand, one hundred forty-eight".

Divisors: 1 2 4 13 26 52 599 1198 2396 7787 15574 31148