31146000286 has 4 divisors (see below), whose sum is σ = 46719000432. Its totient is φ = 15573000142.

The previous prime is 31146000253. The next prime is 31146000307. The reversal of 31146000286 is 68200064113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68200064113 = 1129 ⋅60407497.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7786500070 + ... + 7786500073.

It is an arithmetic number, because the mean of its divisors is an integer number (11679750108).

Almost surely, 2^31146000286 is an apocalyptic number.

31146000286 is a deficient number, since it is larger than the sum of its proper divisors (15573000146).

31146000286 is a wasteful number, since it uses less digits than its factorization.

31146000286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573000145.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 31146000286 its reverse (68200064113), we get a palindrome (99346064399).

The spelling of 31146000286 in words is "thirty-one billion, one hundred forty-six million, two hundred eighty-six", and thus it is an aban number.