2250761 has 2 divisors, whose sum is σ = 2250762. Its totient is φ = 2250760.

The previous prime is 2250713. The next prime is 2250763. The reversal of 2250761 is 1670522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1836025 + 414736 = 1355^2 + 644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2250761 is a prime.

Together with 2250763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2250763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125380 + 1125381.

It is an arithmetic number, because the mean of its divisors is an integer number (1125381).

2^2250761 is an apocalyptic number.

It is an amenable number.

2250761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2250761 is an equidigital number, since it uses as much as digits as its factorization.

2250761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2250761 is about 1500.2536452214. The cubic root of 2250761 is about 131.0518412615.

The spelling of 2250761 in words is "two million, two hundred fifty thousand, seven hundred sixty-one".