11121554 has 8 divisors (see below), whose sum is σ = 16727040. Its totient is φ = 5545876.

The previous prime is 11121547. The next prime is 11121589. The reversal of 11121554 is 45512111.

11121554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6494 + ... + 8025.

It is an arithmetic number, because the mean of its divisors is an integer number (2090880).

Almost surely, 2^11121554 is an apocalyptic number.

11121554 is a deficient number, since it is larger than the sum of its proper divisors (5605486).

11121554 is a wasteful number, since it uses less digits than its factorization.

11121554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904.

The product of its digits is 200, while the sum is 20.

The square root of 11121554 is about 3334.8993987825. The cubic root of 11121554 is about 223.2142029434.

Adding to 11121554 its reverse (45512111), we get a palindrome (56633665).

The spelling of 11121554 in words is "eleven million, one hundred twenty-one thousand, five hundred fifty-four".