11139536 has 20 divisors (see below), whose sum is σ = 22110564. Its totient is φ = 5433600.

The previous prime is 11139533. The next prime is 11139563. The reversal of 11139536 is 63593111.

It can be written as a sum of positive squares in 2 ways, for example, as 6031936 + 5107600 = 2456^2 + 2260^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11139499 and 11139508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11139533) 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, 7835 + ... + 9146.

Almost surely, 2^11139536 is an apocalyptic number.

11139536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11139536 is a deficient number, since it is larger than the sum of its proper divisors (10971028).

11139536 is a wasteful number, since it uses less digits than its factorization.

11139536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17030 (or 17024 counting only the distinct ones).

The product of its digits is 2430, while the sum is 29.

The square root of 11139536 is about 3337.5943432359. The cubic root of 11139536 is about 223.3344402311.

The spelling of 11139536 in words is "eleven million, one hundred thirty-nine thousand, five hundred thirty-six".