2565414149 has 2 divisors, whose sum is σ = 2565414150. Its totient is φ = 2565414148.

The previous prime is 2565414139. The next prime is 2565414169. The reversal of 2565414149 is 9414145652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1318053025 + 1247361124 = 36305^2 + 35318^2 .

It is a cyclic number.

It is not a de Polignac number, because 2565414149 - 2⁴ = 2565414133 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565414139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282707074 + 1282707075.

It is an arithmetic number, because the mean of its divisors is an integer number (1282707075).

Almost surely, 2^2565414149 is an apocalyptic number.

It is an amenable number.

2565414149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565414149 is an equidigital number, since it uses as much as digits as its factorization.

2565414149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 2565414149 is about 50649.9175616308. The cubic root of 2565414149 is about 1368.9444600066.

The spelling of 2565414149 in words is "two billion, five hundred sixty-five million, four hundred fourteen thousand, one hundred forty-nine".