2248861 has 2 divisors, whose sum is σ = 2248862. Its totient is φ = 2248860.

The previous prime is 2248853. The next prime is 2248867. The reversal of 2248861 is 1688422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1428025 + 820836 = 1195^2 + 906^2 .

It is a cyclic number.

It is not a de Polignac number, because 2248861 - 2³ = 2248853 is a prime.

2248861 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2248867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124430 + 1124431.

It is an arithmetic number, because the mean of its divisors is an integer number (1124431).

2^2248861 is an apocalyptic number.

It is an amenable number.

2248861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2248861 is an equidigital number, since it uses as much as digits as its factorization.

2248861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 31.

The square root of 2248861 is about 1499.6202852722. The cubic root of 2248861 is about 131.0149546861.

It can be divided in two parts, 2248 and 861, that multiplied together give a triangular number (1935528 = T₁₉₆₇).

The spelling of 2248861 in words is "two million, two hundred forty-eight thousand, eight hundred sixty-one".