1319091 has 4 divisors (see below), whose sum is σ = 1758792. Its totient is φ = 879392.

The previous prime is 1319083. The next prime is 1319107. The reversal of 1319091 is 1909131.

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 1319091 - 2³ = 1319083 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1319191) 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, 219846 + ... + 219851.

It is an arithmetic number, because the mean of its divisors is an integer number (439698).

2^1319091 is an apocalyptic number.

1319091 is a deficient number, since it is larger than the sum of its proper divisors (439701).

1319091 is an equidigital number, since it uses as much as digits as its factorization.

1319091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439700.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 1319091 is about 1148.5168697063. The cubic root of 1319091 is about 109.6709450182.

The spelling of 1319091 in words is "one million, three hundred nineteen thousand, ninety-one".