213886135 has 32 divisors (see below), whose sum is σ = 280324800. Its totient is φ = 156119040.

The previous prime is 213886133. The next prime is 213886187. The reversal of 213886135 is 531688312.

It is not a de Polignac number, because 213886135 - 2¹ = 213886133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213886094 and 213886103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213886133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346347 + ... + 346963.

It is an arithmetic number, because the mean of its divisors is an integer number (8760150).

Almost surely, 2^213886135 is an apocalyptic number.

213886135 is a deficient number, since it is larger than the sum of its proper divisors (66438665).

213886135 is a wasteful number, since it uses less digits than its factorization.

213886135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

The product of its digits is 34560, while the sum is 37.

The square root of 213886135 is about 14624.8464949209. The cubic root of 213886135 is about 598.0362977263.

The spelling of 213886135 in words is "two hundred thirteen million, eight hundred eighty-six thousand, one hundred thirty-five".