1296714561 has 16 divisors (see below), whose sum is σ = 1757501760. Its totient is φ = 850294080.

The previous prime is 1296714521. The next prime is 1296714563. The reversal of 1296714561 is 1654176921.

It is not a de Polignac number, because 1296714561 - 2²¹ = 1294617409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1296714563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45651 + ... + 68391.

It is an arithmetic number, because the mean of its divisors is an integer number (109843860).

Almost surely, 2^1296714561 is an apocalyptic number.

It is an amenable number.

1296714561 is a deficient number, since it is larger than the sum of its proper divisors (460787199).

1296714561 is a wasteful number, since it uses less digits than its factorization.

1296714561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23056.

The product of its digits is 90720, while the sum is 42.

The square root of 1296714561 is about 36009.9230907260. The cubic root of 1296714561 is about 1090.4726959686.

The spelling of 1296714561 in words is "one billion, two hundred ninety-six million, seven hundred fourteen thousand, five hundred sixty-one".