11331949 has 4 divisors (see below), whose sum is σ = 11608380. Its totient is φ = 11055520.

The previous prime is 11331941. The next prime is 11331973. The reversal of 11331949 is 94913311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94913311 = 1279 ⋅74209.

It can be written as a sum of positive squares in 2 ways, for example, as 243049 + 11088900 = 493^2 + 3330^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331949 - 2³ = 11331941 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 11331949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331941) 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, 138154 + ... + 138235.

It is an arithmetic number, because the mean of its divisors is an integer number (2902095).

Almost surely, 2^11331949 is an apocalyptic number.

It is an amenable number.

11331949 is a deficient number, since it is larger than the sum of its proper divisors (276431).

11331949 is an equidigital number, since it uses as much as digits as its factorization.

11331949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276430.

The product of its digits is 2916, while the sum is 31.

The square root of 11331949 is about 3366.2960357045. The cubic root of 11331949 is about 224.6129906767.

The spelling of 11331949 in words is "eleven million, three hundred thirty-one thousand, nine hundred forty-nine".