213101632 has 14 divisors (see below), whose sum is σ = 422873678. Its totient is φ = 106550784.

The previous prime is 213101627. The next prime is 213101633. The reversal of 213101632 is 236101312.

It can be written as a sum of positive squares in only one way, i.e., 211295296 + 1806336 = 14536^2 + 1344^2 .

It is a super-2 number, since 2×213101632² = 90824611122126848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213101633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664793 + ... + 1664920.

Almost surely, 2^213101632 is an apocalyptic number.

It is an amenable number.

213101632 is a deficient number, since it is larger than the sum of its proper divisors (209772046).

213101632 is an equidigital number, since it uses as much as digits as its factorization.

213101632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329725 (or 3329715 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 213101632 is about 14598.0009590355. Note that the first 3 decimals coincide. The cubic root of 213101632 is about 597.3042321246.

Adding to 213101632 its reverse (236101312), we get a palindrome (449202944).

The spelling of 213101632 in words is "two hundred thirteen million, one hundred one thousand, six hundred thirty-two".