11154639 has 8 divisors (see below), whose sum is σ = 14890752. Its totient is φ = 7427480.

The previous prime is 11154613. The next prime is 11154667. The reversal of 11154639 is 93645111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11154639 - 2⁵ = 11154607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11154139) 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 7 ways as a sum of consecutive naturals, for example, 1624 + ... + 4994.

It is an arithmetic number, because the mean of its divisors is an integer number (1861344).

Almost surely, 2^11154639 is an apocalyptic number.

11154639 is a deficient number, since it is larger than the sum of its proper divisors (3736113).

11154639 is a wasteful number, since it uses less digits than its factorization.

11154639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477.

The product of its digits is 3240, while the sum is 30.

The square root of 11154639 is about 3339.8561346262. The cubic root of 11154639 is about 223.4353270429.

The spelling of 11154639 in words is "eleven million, one hundred fifty-four thousand, six hundred thirty-nine".