2512681 has 8 divisors (see below), whose sum is σ = 2649024. Its totient is φ = 2378640.

The previous prime is 2512673. The next prime is 2512691. The reversal of 2512681 is 1862152.

2512681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2512681 - 2³ = 2512673 is a prime.

It is a super-4 number, since 4×2512681⁴ (a number of 27 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

2512681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2512661) 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, 1951 + ... + 2971.

It is an arithmetic number, because the mean of its divisors is an integer number (331128).

2^2512681 is an apocalyptic number.

It is an amenable number.

2512681 is a deficient number, since it is larger than the sum of its proper divisors (136343).

2512681 is a wasteful number, since it uses less digits than its factorization.

2512681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151.

The product of its digits is 960, while the sum is 25.

The square root of 2512681 is about 1585.1438420535. The cubic root of 2512681 is about 135.9499707853.

The spelling of 2512681 in words is "two million, five hundred twelve thousand, six hundred eighty-one".