1294991 has 8 divisors (see below), whose sum is σ = 1347840. Its totient is φ = 1243288.

The previous prime is 1294987. The next prime is 1294999. The reversal of 1294991 is 1994921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1294991 - 2² = 1294987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294999) 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 7 ways as a sum of consecutive naturals, for example, 2540 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

2^1294991 is an apocalyptic number.

1294991 is a deficient number, since it is larger than the sum of its proper divisors (52849).

1294991 is an equidigital number, since it uses as much as digits as its factorization.

1294991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its digits is 5832, while the sum is 35.

The square root of 1294991 is about 1137.9767132943. The cubic root of 1294991 is about 108.9989338616.

The spelling of 1294991 in words is "one million, two hundred ninety-four thousand, nine hundred ninety-one".