11156148 has 36 divisors (see below), whose sum is σ = 29860740. Its totient is φ = 3499776.

The previous prime is 11156147. The next prime is 11156149. The reversal of 11156148 is 84165111.

11156148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11156147) and next prime (11156149).

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 736164 = 3228^2 + 858^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8503 + ... + 9726.

It is an arithmetic number, because the mean of its divisors is an integer number (829465).

Almost surely, 2^11156148 is an apocalyptic number.

11156148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11156148 is an abundant number, since it is smaller than the sum of its proper divisors (18704592).

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

11156148 is a wasteful number, since it uses less digits than its factorization.

11156148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18256 (or 18251 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 11156148 is about 3340.0820349207. The cubic root of 11156148 is about 223.4454020352.

The spelling of 11156148 in words is "eleven million, one hundred fifty-six thousand, one hundred forty-eight".