11938149 has 6 divisors (see below), whose sum is σ = 17244006. Its totient is φ = 7958760.

The previous prime is 11938109. The next prime is 11938151. The reversal of 11938149 is 94183911.

11938149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7128900 + 4809249 = 2670^2 + 2193^2 .

It is not a de Polignac number, because 11938149 - 2¹¹ = 11936101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11938109) 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, 663222 + ... + 663239.

It is an arithmetic number, because the mean of its divisors is an integer number (2874001).

Almost surely, 2^11938149 is an apocalyptic number.

It is an amenable number.

11938149 is a deficient number, since it is larger than the sum of its proper divisors (5305857).

11938149 is a wasteful number, since it uses less digits than its factorization.

11938149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326467 (or 1326464 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 11938149 is about 3455.1626589786. The cubic root of 11938149 is about 228.5488278807.

The spelling of 11938149 in words is "eleven million, nine hundred thirty-eight thousand, one hundred forty-nine".