31283201 has 8 divisors (see below), whose sum is σ = 31950240. Its totient is φ = 30622752.

The previous prime is 31283191. The next prime is 31283227. The reversal of 31283201 is 10238213.

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

It is a cyclic number.

It is not a de Polignac number, because 31283201 - 2¹⁰ = 31282177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31283261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8606 + ... + 11688.

It is an arithmetic number, because the mean of its divisors is an integer number (3993780).

Almost surely, 2^31283201 is an apocalyptic number.

It is an amenable number.

31283201 is a deficient number, since it is larger than the sum of its proper divisors (667039).

31283201 is a wasteful number, since it uses less digits than its factorization.

31283201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 31283201 is about 5593.1387431388. The cubic root of 31283201 is about 315.0917713629.

The spelling of 31283201 in words is "thirty-one million, two hundred eighty-three thousand, two hundred one".