2278453 has 2 divisors, whose sum is σ = 2278454. Its totient is φ = 2278452.

The previous prime is 2278429. The next prime is 2278477. The reversal of 2278453 is 3548722.

It is a balanced prime because it is at equal distance from previous prime (2278429) and next prime (2278477).

It can be written as a sum of positive squares in only one way, i.e., 1697809 + 580644 = 1303^2 + 762^2 .

It is a cyclic number.

It is not a de Polignac number, because 2278453 - 2⁵ = 2278421 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 2¹⁸ + 7 + 8⁴ + 4² + 5⁹ + 3¹⁰ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2278553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139226 + 1139227.

It is an arithmetic number, because the mean of its divisors is an integer number (1139227).

2^2278453 is an apocalyptic number.

It is an amenable number.

2278453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2278453 is an equidigital number, since it uses as much as digits as its factorization.

2278453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 2278453 is about 1509.4545372418. The cubic root of 2278453 is about 131.5871128322.

The spelling of 2278453 in words is "two million, two hundred seventy-eight thousand, four hundred fifty-three".