1296401 has 4 divisors (see below), whose sum is σ = 1324032. Its totient is φ = 1268772.

The previous prime is 1296391. The next prime is 1296409. The reversal of 1296401 is 1046921.

It is a happy number.

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 1296401 - 2¹⁰ = 1295377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1296409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13745 + ... + 13838.

It is an arithmetic number, because the mean of its divisors is an integer number (331008).

2^1296401 is an apocalyptic number.

It is an amenable number.

1296401 is a deficient number, since it is larger than the sum of its proper divisors (27631).

1296401 is an equidigital number, since it uses as much as digits as its factorization.

1296401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27630.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1296401 is about 1138.5960653366. The cubic root of 1296401 is about 109.0384792461.

The spelling of 1296401 in words is "one million, two hundred ninety-six thousand, four hundred one".