11156349 has 4 divisors (see below), whose sum is σ = 14875136. Its totient is φ = 7437564.

The previous prime is 11156323. The next prime is 11156381. The reversal of 11156349 is 94365111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11156349 - 2¹⁷ = 11025277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859389 + ... + 1859394.

It is an arithmetic number, because the mean of its divisors is an integer number (3718784).

Almost surely, 2^11156349 is an apocalyptic number.

It is an amenable number.

11156349 is a deficient number, since it is larger than the sum of its proper divisors (3718787).

11156349 is an equidigital number, since it uses as much as digits as its factorization.

11156349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718786.

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

The square root of 11156349 is about 3340.1121238665. The cubic root of 11156349 is about 223.4467439637.

The spelling of 11156349 in words is "eleven million, one hundred fifty-six thousand, three hundred forty-nine".