219241249 has 2 divisors, whose sum is σ = 219241250. Its totient is φ = 219241248.

The previous prime is 219241201. The next prime is 219241261. The reversal of 219241249 is 942142912.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117332224 + 101909025 = 10832^2 + 10095^2 .

It is a cyclic number.

It is not a de Polignac number, because 219241249 - 2⁹ = 219240737 is a prime.

It is not a weakly prime, because it can be changed into another prime (219541249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109620624 + 109620625.

It is an arithmetic number, because the mean of its divisors is an integer number (109620625).

Almost surely, 2^219241249 is an apocalyptic number.

It is an amenable number.

219241249 is a deficient number, since it is larger than the sum of its proper divisors (1).

219241249 is an equidigital number, since it uses as much as digits as its factorization.

219241249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 219241249 is about 14806.7973917387. The cubic root of 219241249 is about 602.9862688207.

The spelling of 219241249 in words is "two hundred nineteen million, two hundred forty-one thousand, two hundred forty-nine".