1294091 has 4 divisors (see below), whose sum is σ = 1370232. Its totient is φ = 1217952.

The previous prime is 1294087. The next prime is 1294103. The reversal of 1294091 is 1904921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1294091 - 2² = 1294087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1294091.

It is not an unprimeable number, because it can be changed into a prime (1294021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38045 + ... + 38078.

It is an arithmetic number, because the mean of its divisors is an integer number (342558).

2^1294091 is an apocalyptic number.

1294091 is a deficient number, since it is larger than the sum of its proper divisors (76141).

1294091 is an equidigital number, since it uses as much as digits as its factorization.

1294091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76140.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1294091 is about 1137.5812058926. The cubic root of 1294091 is about 108.9736771159.

It can be divided in two parts, 12940 and 91, that added together give a palindrome (13031).

The spelling of 1294091 in words is "one million, two hundred ninety-four thousand, ninety-one".