1295864501 has 2 divisors, whose sum is σ = 1295864502. Its totient is φ = 1295864500.

The previous prime is 1295864489. The next prime is 1295864519. The reversal of 1295864501 is 1054685921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 816473476 + 479391025 = 28574^2 + 21895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1295864501 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295864561) 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, 647932250 + 647932251.

It is an arithmetic number, because the mean of its divisors is an integer number (647932251).

Almost surely, 2^1295864501 is an apocalyptic number.

It is an amenable number.

1295864501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295864501 is an equidigital number, since it uses as much as digits as its factorization.

1295864501 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 1295864501 is about 35998.1180202521. The cubic root of 1295864501 is about 1090.2343577665.

The spelling of 1295864501 in words is "one billion, two hundred ninety-five million, eight hundred sixty-four thousand, five hundred one".