2572981 has 2 divisors, whose sum is σ = 2572982. Its totient is φ = 2572980.

The previous prime is 2572949. The next prime is 2572993. The reversal of 2572981 is 1892752.

2572981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 970225 = 1266^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 2572981 - 2⁵ = 2572949 is a prime.

It is a super-2 number, since 2×2572981² = 13240462452722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2572081) 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 as a sum of consecutive naturals, namely, 1286490 + 1286491.

It is an arithmetic number, because the mean of its divisors is an integer number (1286491).

2^2572981 is an apocalyptic number.

It is an amenable number.

2572981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2572981 is an equidigital number, since it uses as much as digits as its factorization.

2572981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 2572981 is about 1604.0514330906. The cubic root of 2572981 is about 137.0289068241.

It can be divided in two parts, 2572 and 981, that added together give a palindrome (3553).

The spelling of 2572981 in words is "two million, five hundred seventy-two thousand, nine hundred eighty-one".