213015869 has 8 divisors (see below), whose sum is σ = 238049280. Its totient is φ = 188927200.

The previous prime is 213015841. The next prime is 213015877. The reversal of 213015869 is 968510312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213015869 - 2⁸ = 213015613 is a prime.

It is a super-2 number, since 2×213015869² = 90751520891650322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213015809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235709 + ... + 236610.

It is an arithmetic number, because the mean of its divisors is an integer number (29756160).

Almost surely, 2^213015869 is an apocalyptic number.

It is an amenable number.

213015869 is a deficient number, since it is larger than the sum of its proper divisors (25033411).

213015869 is a wasteful number, since it uses less digits than its factorization.

213015869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472371.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 213015869 is about 14595.0631721826. The cubic root of 213015869 is about 597.2240927783.

The spelling of 213015869 in words is "two hundred thirteen million, fifteen thousand, eight hundred sixty-nine".