54120111 has 8 divisors (see below), whose sum is σ = 72216240. Its totient is φ = 36052032.

The previous prime is 54120047. The next prime is 54120139. The reversal of 54120111 is 11102145.

It is a happy number.

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

It is not a de Polignac number, because 54120111 - 2⁶ = 54120047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54120181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996 + ... + 10593.

It is an arithmetic number, because the mean of its divisors is an integer number (9027030).

Almost surely, 2^54120111 is an apocalyptic number.

54120111 is a deficient number, since it is larger than the sum of its proper divisors (18096129).

54120111 is a wasteful number, since it uses less digits than its factorization.

54120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 54120111 is about 7356.6372073115. The cubic root of 54120111 is about 378.2563488859.

Adding to 54120111 its reverse (11102145), we get a palindrome (65222256).

The spelling of 54120111 in words is "fifty-four million, one hundred twenty thousand, one hundred eleven".