1296634 has 4 divisors (see below), whose sum is σ = 1944954. Its totient is φ = 648316.

The previous prime is 1296629. The next prime is 1296649. The reversal of 1296634 is 4366921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4366921 = 13 ⋅335917.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 162409 = 1065^2 + 403^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1296596 and 1296605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324157 + ... + 324160.

2^1296634 is an apocalyptic number.

1296634 is a deficient number, since it is larger than the sum of its proper divisors (648320).

1296634 is an equidigital number, since it uses as much as digits as its factorization.

1296634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648319.

The product of its digits is 7776, while the sum is 31.

The square root of 1296634 is about 1138.6983797301. The cubic root of 1296634 is about 109.0450112898.

The spelling of 1296634 in words is "one million, two hundred ninety-six thousand, six hundred thirty-four".