2251489 has 2 divisors, whose sum is σ = 2251490. Its totient is φ = 2251488.

The previous prime is 2251471. The next prime is 2251507. The reversal of 2251489 is 9841522.

It is a balanced prime because it is at equal distance from previous prime (2251471) and next prime (2251507).

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 613089 = 1280^2 + 783^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251489 - 2⁹ = 2250977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2251489.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2252489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125744 + 1125745.

It is an arithmetic number, because the mean of its divisors is an integer number (1125745).

2^2251489 is an apocalyptic number.

It is an amenable number.

2251489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251489 is an equidigital number, since it uses as much as digits as its factorization.

2251489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 2251489 is about 1500.4962512449. The cubic root of 2251489 is about 131.0659691433.

The spelling of 2251489 in words is "two million, two hundred fifty-one thousand, four hundred eighty-nine".