213253015 has 16 divisors (see below), whose sum is σ = 278284032. Its totient is φ = 156225024.

The previous prime is 213252961. The next prime is 213253021. The reversal of 213253015 is 510352312.

It is a cyclic number.

It is not a de Polignac number, because 213253015 - 2⁷ = 213252887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30759 + ... + 37048.

It is an arithmetic number, because the mean of its divisors is an integer number (17392752).

Almost surely, 2^213253015 is an apocalyptic number.

213253015 is a deficient number, since it is larger than the sum of its proper divisors (65031017).

213253015 is a wasteful number, since it uses less digits than its factorization.

213253015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67866.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 213253015 is about 14603.1850977792. The cubic root of 213253015 is about 597.4456361782.

The spelling of 213253015 in words is "two hundred thirteen million, two hundred fifty-three thousand, fifteen".