9140086981 has 8 divisors (see below), whose sum is σ = 9233785440. Its totient is φ = 9046567728.

The previous prime is 9140086979. The next prime is 9140086987. The reversal of 9140086981 is 1896800419.

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 9140086981 - 2¹ = 9140086979 is a prime.

It is a super-2 number, since 2×9140086981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9140086987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58950 + ... + 147496.

It is an arithmetic number, because the mean of its divisors is an integer number (1154223180).

Almost surely, 2^9140086981 is an apocalyptic number.

It is an amenable number.

9140086981 is a deficient number, since it is larger than the sum of its proper divisors (93698459).

9140086981 is a wasteful number, since it uses less digits than its factorization.

9140086981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89603.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 9140086981 is about 95603.8021262753. The cubic root of 9140086981 is about 2090.8206281936.

The spelling of 9140086981 in words is "nine billion, one hundred forty million, eighty-six thousand, nine hundred eighty-one".