1149491 has 6 divisors (see below), whose sum is σ = 1337220. Its totient is φ = 985236.

The previous prime is 1149487. The next prime is 1149493. The reversal of 1149491 is 1949411.

It is not a de Polignac number, because 1149491 - 2² = 1149487 is a prime.

It is a super-3 number, since 3×1149491³ = 4556569308592733313, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11681 + ... + 11778.

It is an arithmetic number, because the mean of its divisors is an integer number (222870).

2^1149491 is an apocalyptic number.

1149491 is a deficient number, since it is larger than the sum of its proper divisors (187729).

1149491 is an equidigital number, since it uses as much as digits as its factorization.

1149491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23473 (or 23466 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 1149491 is about 1072.1431807366. The cubic root of 1149491 is about 104.7534958192.

The spelling of 1149491 in words is "one million, one hundred forty-nine thousand, four hundred ninety-one".