2514781 has 2 divisors, whose sum is σ = 2514782. Its totient is φ = 2514780.

The previous prime is 2514767. The next prime is 2514791. The reversal of 2514781 is 1874152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 912025 = 1266^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2514781 - 2⁹ = 2514269 is a prime.

It is a super-2 number, since 2×2514781² = 12648246955922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2514731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257390 + 1257391.

It is an arithmetic number, because the mean of its divisors is an integer number (1257391).

2^2514781 is an apocalyptic number.

It is an amenable number.

2514781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2514781 is an equidigital number, since it uses as much as digits as its factorization.

2514781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 28.

The square root of 2514781 is about 1585.8061041628. The cubic root of 2514781 is about 135.9878341193.

The spelling of 2514781 in words is "two million, five hundred fourteen thousand, seven hundred eighty-one".