1140149 has 4 divisors (see below), whose sum is σ = 1176960. Its totient is φ = 1103340.

The previous prime is 1140143. The next prime is 1140157. The reversal of 1140149 is 9410411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9410411 = 71 ⋅132541.

It is a cyclic number.

It is not a de Polignac number, because 1140149 - 2¹² = 1136053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18359 + ... + 18420.

It is an arithmetic number, because the mean of its divisors is an integer number (294240).

2^1140149 is an apocalyptic number.

It is an amenable number.

1140149 is a deficient number, since it is larger than the sum of its proper divisors (36811).

1140149 is an equidigital number, since it uses as much as digits as its factorization.

1140149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36810.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1140149 is about 1067.7775985663. Note that the first 3 decimals coincide. The cubic root of 1140149 is about 104.4689437104.

The spelling of 1140149 in words is "one million, one hundred forty thousand, one hundred forty-nine".