11139426 has 12 divisors (see below), whose sum is σ = 24135462. Its totient is φ = 3713136.

The previous prime is 11139419. The next prime is 11139431. The reversal of 11139426 is 62493111.

It can be written as a sum of positive squares in only one way, i.e., 10246401 + 893025 = 3201^2 + 945^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11139426.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 309411 + ... + 309446.

Almost surely, 2^11139426 is an apocalyptic number.

11139426 is an abundant number, since it is smaller than the sum of its proper divisors (12996036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11139426 is a wasteful number, since it uses less digits than its factorization.

11139426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618865 (or 618862 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 11139426 is about 3337.5778642602. The cubic root of 11139426 is about 223.3337051057. Note that the first 3 decimals are identical.

The spelling of 11139426 in words is "eleven million, one hundred thirty-nine thousand, four hundred twenty-six".