1361091 has 8 divisors (see below), whose sum is σ = 1838080. Its totient is φ = 895752.

The previous prime is 1361089. The next prime is 1361099. The reversal of 1361091 is 1901631.

It is a happy number.

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

It is not a de Polignac number, because 1361091 - 2¹ = 1361089 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 (1361099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2635 + ... + 3108.

It is an arithmetic number, because the mean of its divisors is an integer number (229760).

2^1361091 is an apocalyptic number.

1361091 is a deficient number, since it is larger than the sum of its proper divisors (476989).

1361091 is an equidigital number, since it uses as much as digits as its factorization.

1361091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1361091 is about 1166.6580475872. The cubic root of 1361091 is about 110.8227835261.

The spelling of 1361091 in words is "one million, three hundred sixty-one thousand, ninety-one".