219054140 has 12 divisors (see below), whose sum is σ = 460013736. Its totient is φ = 87621648.

The previous prime is 219054137. The next prime is 219054149. The reversal of 219054140 is 41450912.

It is a super-2 number, since 2×219054140² = 95969432502279200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219054149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5476334 + ... + 5476373.

It is an arithmetic number, because the mean of its divisors is an integer number (38334478).

Almost surely, 2^219054140 is an apocalyptic number.

219054140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219054140 is an abundant number, since it is smaller than the sum of its proper divisors (240959596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

219054140 is a wasteful number, since it uses less digits than its factorization.

219054140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10952716 (or 10952714 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 219054140 is about 14800.4776949935. The cubic root of 219054140 is about 602.8146826956.

The spelling of 219054140 in words is "two hundred nineteen million, fifty-four thousand, one hundred forty".