11916554 has 12 divisors (see below), whose sum is σ = 19278294. Its totient is φ = 5491824.

The previous prime is 11916551. The next prime is 11916557. The reversal of 11916554 is 45561911.

11916554 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 (11916551) and next prime (11916557).

It can be written as a sum of positive squares in 3 ways, for example, as 11744329 + 172225 = 3427^2 + 415^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11916554.

It is not an unprimeable number, because it can be changed into a prime (11916551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17264 + ... + 17940.

Almost surely, 2^11916554 is an apocalyptic number.

11916554 is a deficient number, since it is larger than the sum of its proper divisors (7361740).

11916554 is an frugal number, since it uses more digits than its factorization.

11916554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 692 counting only the distinct ones).

The product of its digits is 5400, while the sum is 32.

The square root of 11916554 is about 3452.0362107023. The cubic root of 11916554 is about 228.4109368533.

The spelling of 11916554 in words is "eleven million, nine hundred sixteen thousand, five hundred fifty-four".