284145111 has 16 divisors (see below), whose sum is σ = 422604000. Its totient is φ = 188688384.

The previous prime is 284145097. The next prime is 284145119. The reversal of 284145111 is 111541482.

It is a happy number.

It is not a de Polignac number, because 284145111 - 2⁷ = 284144983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284145119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13536 + ... + 27413.

It is an arithmetic number, because the mean of its divisors is an integer number (26412750).

Almost surely, 2^284145111 is an apocalyptic number.

284145111 is a deficient number, since it is larger than the sum of its proper divisors (138458889).

284145111 is a wasteful number, since it uses less digits than its factorization.

284145111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41215 (or 41209 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 284145111 is about 16856.6043733606. The cubic root of 284145111 is about 657.4257785110.

Adding to 284145111 its reverse (111541482), we get a palindrome (395686593).

The spelling of 284145111 in words is "two hundred eighty-four million, one hundred forty-five thousand, one hundred eleven".