1295548049 has 2 divisors, whose sum is σ = 1295548050. Its totient is φ = 1295548048.

The previous prime is 1295548043. The next prime is 1295548057. The reversal of 1295548049 is 9408455921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708358225 + 587189824 = 26615^2 + 24232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295548049 - 2²⁰ = 1294499473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1295547994 and 1295548012.

It is not a weakly prime, because it can be changed into another prime (1295548043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647774024 + 647774025.

It is an arithmetic number, because the mean of its divisors is an integer number (647774025).

Almost surely, 2^1295548049 is an apocalyptic number.

It is an amenable number.

1295548049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295548049 is an equidigital number, since it uses as much as digits as its factorization.

1295548049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 1295548049 is about 35993.7223554330. The cubic root of 1295548049 is about 1090.1456049351.

The spelling of 1295548049 in words is "one billion, two hundred ninety-five million, five hundred forty-eight thousand, forty-nine".