11742149 has 4 divisors (see below), whose sum is σ = 12120960. Its totient is φ = 11363340.

The previous prime is 11742109. The next prime is 11742173. The reversal of 11742149 is 94124711.

11742149 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 94124711 = 31 ⋅3036281.

It is a cyclic number.

It is not a de Polignac number, because 11742149 - 2⁸ = 11741893 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 (11742109) 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, 189359 + ... + 189420.

It is an arithmetic number, because the mean of its divisors is an integer number (3030240).

Almost surely, 2^11742149 is an apocalyptic number.

It is an amenable number.

11742149 is a deficient number, since it is larger than the sum of its proper divisors (378811).

11742149 is an equidigital number, since it uses as much as digits as its factorization.

11742149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378810.

The product of its digits is 2016, while the sum is 29.

The square root of 11742149 is about 3426.6819227935. The cubic root of 11742149 is about 227.2911515682.

The spelling of 11742149 in words is "eleven million, seven hundred forty-two thousand, one hundred forty-nine".