213500373 has 16 divisors (see below), whose sum is σ = 287539200. Its totient is φ = 140905520.

The previous prime is 213500369. The next prime is 213500381. The reversal of 213500373 is 373005312.

It is a cyclic number.

It is not a de Polignac number, because 213500373 - 2² = 213500369 is a prime.

It is a super-2 number, since 2×213500373² = 91164818542278258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213500383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136168 + ... + 137726.

It is an arithmetic number, because the mean of its divisors is an integer number (17971200).

Almost surely, 2^213500373 is an apocalyptic number.

It is an amenable number.

213500373 is a deficient number, since it is larger than the sum of its proper divisors (74038827).

213500373 is a wasteful number, since it uses less digits than its factorization.

213500373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 213500373 is about 14611.6519599941. The cubic root of 213500373 is about 597.6765447624.

Adding to 213500373 its reverse (373005312), we get a palindrome (586505685).

The spelling of 213500373 in words is "two hundred thirteen million, five hundred thousand, three hundred seventy-three".