213054140 has 48 divisors (see below), whose sum is σ = 494874912. Its totient is φ = 76536576.

The previous prime is 213054131. The next prime is 213054167. The reversal of 213054140 is 41450312.

213054140 is nontrivially palindromic in base 16.

213054140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213054140² = 90784133142279200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454 + ... + 20693.

It is an arithmetic number, because the mean of its divisors is an integer number (10309894).

Almost surely, 2^213054140 is an apocalyptic number.

213054140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213054140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247437456).

213054140 is an abundant number, since it is smaller than the sum of its proper divisors (281820772).

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

213054140 is a wasteful number, since it uses less digits than its factorization.

213054140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22206 (or 22204 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 213054140 is about 14596.3742073160. The cubic root of 213054140 is about 597.2598569285.

The spelling of 213054140 in words is "two hundred thirteen million, fifty-four thousand, one hundred forty".