3131440086 has 16 divisors (see below), whose sum is σ = 6631285104. Its totient is φ = 982412544.

The previous prime is 3131440079. The next prime is 3131440111. The reversal of 3131440086 is 6800441313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15350095 + ... + 15350298.

It is an arithmetic number, because the mean of its divisors is an integer number (414455319).

Almost surely, 2^3131440086 is an apocalyptic number.

3131440086 is an abundant number, since it is smaller than the sum of its proper divisors (3499845018).

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

3131440086 is a wasteful number, since it uses less digits than its factorization.

3131440086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30700415.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 3131440086 is about 55959.2716714576. The cubic root of 3131440086 is about 1463.0124960252.

Adding to 3131440086 its reverse (6800441313), we get a palindrome (9931881399).

The spelling of 3131440086 in words is "three billion, one hundred thirty-one million, four hundred forty thousand, eighty-six".