9102981 has 8 divisors (see below), whose sum is σ = 12308544. Its totient is φ = 5983040.

The previous prime is 9102953. The next prime is 9102991. The reversal of 9102981 is 1892019.

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 9102981 - 2⁵ = 9102949 is a prime.

It is a super-2 number, since 2×9102981² = 165728526172722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9102901) 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, 21156 + ... + 21581.

It is an arithmetic number, because the mean of its divisors is an integer number (1538568).

Almost surely, 2^9102981 is an apocalyptic number.

It is an amenable number.

9102981 is a deficient number, since it is larger than the sum of its proper divisors (3205563).

9102981 is a wasteful number, since it uses less digits than its factorization.

9102981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42811.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 9102981 is about 3017.1146812808. The cubic root of 9102981 is about 208.7987424874.

The spelling of 9102981 in words is "nine million, one hundred two thousand, nine hundred eighty-one".