1295865401 has 2 divisors, whose sum is σ = 1295865402. Its totient is φ = 1295865400.

The previous prime is 1295865397. The next prime is 1295865407. The reversal of 1295865401 is 1045685921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1241857600 + 54007801 = 35240^2 + 7349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295865401 - 2² = 1295865397 is a prime.

It is not a weakly prime, because it can be changed into another prime (1295865407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647932700 + 647932701.

It is an arithmetic number, because the mean of its divisors is an integer number (647932701).

Almost surely, 2^1295865401 is an apocalyptic number.

It is an amenable number.

1295865401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295865401 is an equidigital number, since it uses as much as digits as its factorization.

1295865401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1295865401 is about 35998.1305209034. The cubic root of 1295865401 is about 1090.2346101619.

The spelling of 1295865401 in words is "one billion, two hundred ninety-five million, eight hundred sixty-five thousand, four hundred one".