213101265 has 16 divisors (see below), whose sum is σ = 367190208. Its totient is φ = 104911296.

The previous prime is 213101261. The next prime is 213101267. The reversal of 213101265 is 562101312.

It is not a de Polignac number, because 213101265 - 2² = 213101261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213101261) 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, 546219 + ... + 546608.

It is an arithmetic number, because the mean of its divisors is an integer number (22949388).

Almost surely, 2^213101265 is an apocalyptic number.

It is an amenable number.

213101265 is a deficient number, since it is larger than the sum of its proper divisors (154088943).

213101265 is a wasteful number, since it uses less digits than its factorization.

213101265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092848.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 213101265 is about 14597.9883888158. The cubic root of 213101265 is about 597.3038892354.

Adding to 213101265 its reverse (562101312), we get a palindrome (775202577).

The spelling of 213101265 in words is "two hundred thirteen million, one hundred one thousand, two hundred sixty-five".