11389149 has 6 divisors (see below), whose sum is σ = 16451006. Its totient is φ = 7592760.

The previous prime is 11389097. The next prime is 11389153. The reversal of 11389149 is 94198311.

11389149 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in only one way, i.e., 9566649 + 1822500 = 3093^2 + 1350^2 .

It is not a de Polignac number, because 11389149 - 2⁸ = 11388893 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 (11389549) 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, 632722 + ... + 632739.

Almost surely, 2^11389149 is an apocalyptic number.

It is an amenable number.

11389149 is a deficient number, since it is larger than the sum of its proper divisors (5061857).

11389149 is a wasteful number, since it uses less digits than its factorization.

11389149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265467 (or 1265464 counting only the distinct ones).

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

The square root of 11389149 is about 3374.7813262492. The cubic root of 11389149 is about 224.9902810617.

It can be divided in two parts, 11389 and 149, that multiplied together give a palindrome (1696961).

The spelling of 11389149 in words is "eleven million, three hundred eighty-nine thousand, one hundred forty-nine".