2512981 has 8 divisors (see below), whose sum is σ = 2570400. Its totient is φ = 2456400.

The previous prime is 2512967. The next prime is 2512999. The reversal of 2512981 is 1892152.

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 2512981 - 2⁹ = 2512469 is a prime.

It is a super-2 number, since 2×2512981² = 12630147012722, 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 (2516981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13950 + ... + 14128.

It is an arithmetic number, because the mean of its divisors is an integer number (321300).

2^2512981 is an apocalyptic number.

It is an amenable number.

2512981 is a deficient number, since it is larger than the sum of its proper divisors (57419).

2512981 is a wasteful number, since it uses less digits than its factorization.

2512981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419.

The product of its digits is 1440, while the sum is 28.

The square root of 2512981 is about 1585.2384678653. The cubic root of 2512981 is about 135.9553811243.

The spelling of 2512981 in words is "two million, five hundred twelve thousand, nine hundred eighty-one".