54111145 has 32 divisors (see below), whose sum is σ = 76049280. Its totient is φ = 36541440.

The previous prime is 54111139. The next prime is 54111181.

It is a happy number.

54111145 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54111145 - 2³ = 54111137 is a prime.

It is a super-2 number, since 2×54111145² = 5856032026422050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54897 + ... + 55873.

It is an arithmetic number, because the mean of its divisors is an integer number (2376540).

Almost surely, 2^54111145 is an apocalyptic number.

54111145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54111145 is a deficient number, since it is larger than the sum of its proper divisors (21938135).

54111145 is a wasteful number, since it uses less digits than its factorization.

54111145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its digits is 400, while the sum is 22.

The square root of 54111145 is about 7356.0278003825. The cubic root of 54111145 is about 378.2354593394.

It can be divided in two parts, 5411 and 1145, that added together give a palindrome (6556).

The spelling of 54111145 in words is "fifty-four million, one hundred eleven thousand, one hundred forty-five".