9162981 has 6 divisors (see below), whose sum is σ = 13235430. Its totient is φ = 6108648.

The previous prime is 9162961. The next prime is 9163003. The reversal of 9162981 is 1892619.

9162981 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9054081 + 108900 = 3009^2 + 330^2 .

It is not a de Polignac number, because 9162981 - 2⁹ = 9162469 is a prime.

It is a super-2 number, since 2×9162981² = 167920441612722, which contains 22 as substring.

9162981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9162961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509046 + ... + 509063.

It is an arithmetic number, because the mean of its divisors is an integer number (2205905).

Almost surely, 2^9162981 is an apocalyptic number.

It is an amenable number.

9162981 is a deficient number, since it is larger than the sum of its proper divisors (4072449).

9162981 is a wasteful number, since it uses less digits than its factorization.

9162981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018115 (or 1018112 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 9162981 is about 3027.0416250855. The cubic root of 9162981 is about 209.2564863120.

The spelling of 9162981 in words is "nine million, one hundred sixty-two thousand, nine hundred eighty-one".