2012981 has 4 divisors (see below), whose sum is σ = 2026464. Its totient is φ = 1999500.

The previous prime is 2012971. The next prime is 2013001. The reversal of 2012981 is 1892102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012981 - 2¹⁰ = 2011957 is a prime.

It is a super-2 number, since 2×2012981² = 8104185012722, which 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 (2012951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6515 + ... + 6816.

It is an arithmetic number, because the mean of its divisors is an integer number (506616).

2^2012981 is an apocalyptic number.

It is an amenable number.

2012981 is a deficient number, since it is larger than the sum of its proper divisors (13483).

2012981 is a wasteful number, since it uses less digits than its factorization.

2012981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13482.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2012981 is about 1418.7956160068. The cubic root of 2012981 is about 126.2641012907.

The spelling of 2012981 in words is "two million, twelve thousand, nine hundred eighty-one".