1170491 has 4 divisors (see below), whose sum is σ = 1337712. Its totient is φ = 1003272.

The previous prime is 1170487. The next prime is 1170497. The reversal of 1170491 is 1940711.

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 1170491 - 2² = 1170487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1170497) 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, 83600 + ... + 83613.

It is an arithmetic number, because the mean of its divisors is an integer number (334428).

2^1170491 is an apocalyptic number.

1170491 is a deficient number, since it is larger than the sum of its proper divisors (167221).

1170491 is an equidigital number, since it uses as much as digits as its factorization.

1170491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167220.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1170491 is about 1081.8923236626. The cubic root of 1170491 is about 105.3875624286.

It can be divided in two parts, 1170 and 491, that added together give a palindrome (1661).

The spelling of 1170491 in words is "one million, one hundred seventy thousand, four hundred ninety-one".