213235500 has 48 divisors (see below), whose sum is σ = 620946144. Its totient is φ = 56862400.

The previous prime is 213235489. The next prime is 213235511. The reversal of 213235500 is 5532312.

It is an interprime number because it is at equal distance from previous prime (213235489) and next prime (213235511).

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, 69579 + ... + 72578.

It is an arithmetic number, because the mean of its divisors is an integer number (12936378).

Almost surely, 2^213235500 is an apocalyptic number.

213235500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213235500 is an abundant number, since it is smaller than the sum of its proper divisors (407710644).

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

213235500 is a wasteful number, since it uses less digits than its factorization.

213235500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142179 (or 142167 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 213235500 is about 14602.5853875264. The cubic root of 213235500 is about 597.4292791655.

Adding to 213235500 its reverse (5532312), we get a palindrome (218767812).

The spelling of 213235500 in words is "two hundred thirteen million, two hundred thirty-five thousand, five hundred".