213543022 has 16 divisors (see below), whose sum is σ = 399353472. Its totient is φ = 83198520.

The previous prime is 213542983. The next prime is 213543023. The reversal of 213543022 is 220345312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 213542984 and 213543002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213543023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693168 + ... + 693475.

It is an arithmetic number, because the mean of its divisors is an integer number (24959592).

Almost surely, 2^213543022 is an apocalyptic number.

213543022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213543022 is a deficient number, since it is larger than the sum of its proper divisors (185810450).

213543022 is a wasteful number, since it uses less digits than its factorization.

213543022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386663.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 213543022 is about 14613.1113045785. Note that the first 3 decimals coincide. The cubic root of 213543022 is about 597.7163395560.

Adding to 213543022 its reverse (220345312), we get a palindrome (433888334).

The spelling of 213543022 in words is "two hundred thirteen million, five hundred forty-three thousand, twenty-two".