1296501 has 4 divisors (see below), whose sum is σ = 1728672. Its totient is φ = 864332.

The previous prime is 1296499. The next prime is 1296511. The reversal of 1296501 is 1056921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1296501 - 2¹ = 1296499 is a prime.

It is a D-number.

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

1296501 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216081 + ... + 216086.

It is an arithmetic number, because the mean of its divisors is an integer number (432168).

2^1296501 is an apocalyptic number.

It is an amenable number.

1296501 is a deficient number, since it is larger than the sum of its proper divisors (432171).

1296501 is an equidigital number, since it uses as much as digits as its factorization.

1296501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432170.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1296501 is about 1138.6399782196. The cubic root of 1296501 is about 109.0412827942.

The spelling of 1296501 in words is "one million, two hundred ninety-six thousand, five hundred one".