31286141 has 8 divisors (see below), whose sum is σ = 34365120. Its totient is φ = 28350432.

The previous prime is 31286131. The next prime is 31286149. The reversal of 31286141 is 14168213.

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

It is not a de Polignac number, because 31286141 - 2⁶ = 31286077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31286141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31286149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35360 + ... + 36233.

It is an arithmetic number, because the mean of its divisors is an integer number (4295640).

Almost surely, 2^31286141 is an apocalyptic number.

It is an amenable number.

31286141 is a deficient number, since it is larger than the sum of its proper divisors (3078979).

31286141 is a wasteful number, since it uses less digits than its factorization.

31286141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71635.

The product of its digits is 1152, while the sum is 26.

The square root of 31286141 is about 5593.4015589800. The cubic root of 31286141 is about 315.1016418446.

The spelling of 31286141 in words is "thirty-one million, two hundred eighty-six thousand, one hundred forty-one".