1294651 has 2 divisors, whose sum is σ = 1294652. Its totient is φ = 1294650.

The previous prime is 1294649. The next prime is 1294691. The reversal of 1294651 is 1564921.

It is a weak prime.

It is an emirp because it is prime and its reverse (1564921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1294651 - 2¹ = 1294649 is a prime.

It is a super-2 number, since 2×1294651² = 3352242423602, which contains 22 as substring.

Together with 1294649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1294621) 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 as a sum of consecutive naturals, namely, 647325 + 647326.

It is an arithmetic number, because the mean of its divisors is an integer number (647326).

2^1294651 is an apocalyptic number.

1294651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294651 is an equidigital number, since it uses as much as digits as its factorization.

1294651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 1294651 is about 1137.8273155449. The cubic root of 1294651 is about 108.9893938001.

The spelling of 1294651 in words is "one million, two hundred ninety-four thousand, six hundred fifty-one".