213505088 has 14 divisors (see below), whose sum is σ = 423674286. Its totient is φ = 106752512.

The previous prime is 213505087. The next prime is 213505111. The reversal of 213505088 is 880505312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 207590464 + 5914624 = 14408^2 + 2432^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (213505087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1667945 + ... + 1668072.

It is an arithmetic number, because the mean of its divisors is an integer number (30262449).

Almost surely, 2^213505088 is an apocalyptic number.

It is an amenable number.

213505088 is a deficient number, since it is larger than the sum of its proper divisors (210169198).

213505088 is an equidigital number, since it uses as much as digits as its factorization.

213505088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336029 (or 3336019 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 213505088 is about 14611.8133029409. The cubic root of 213505088 is about 597.6809444802.

The spelling of 213505088 in words is "two hundred thirteen million, five hundred five thousand, eighty-eight".