1302091 has 4 divisors (see below), whose sum is σ = 1488112. Its totient is φ = 1116072.

The previous prime is 1302079. The next prime is 1302107. The reversal of 1302091 is 1902031.

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 1302091 - 2¹³ = 1293899 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1302061) 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, 93000 + ... + 93013.

It is an arithmetic number, because the mean of its divisors is an integer number (372028).

2^1302091 is an apocalyptic number.

1302091 is a deficient number, since it is larger than the sum of its proper divisors (186021).

1302091 is an equidigital number, since it uses as much as digits as its factorization.

1302091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186020.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1302091 is about 1141.0920208292. The cubic root of 1302091 is about 109.1977724100.

The spelling of 1302091 in words is "one million, three hundred two thousand, ninety-one".