213534063 has 24 divisors (see below), whose sum is σ = 320681088. Its totient is φ = 141991704.

The previous prime is 213534029. The next prime is 213534071. The reversal of 213534063 is 360435312.

It is a happy number.

It is not a de Polignac number, because 213534063 - 2⁸ = 213533807 is a prime.

It is a super-2 number, since 2×213534063² = 91193592122575938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213534023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121356 + ... + 123102.

It is an arithmetic number, because the mean of its divisors is an integer number (13361712).

Almost surely, 2^213534063 is an apocalyptic number.

213534063 is a deficient number, since it is larger than the sum of its proper divisors (107147025).

213534063 is an equidigital number, since it uses as much as digits as its factorization.

213534063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 213534063 is about 14612.8047615781. The cubic root of 213534063 is about 597.7079805604.

Adding to 213534063 its reverse (360435312), we get a palindrome (573969375).

The spelling of 213534063 in words is "two hundred thirteen million, five hundred thirty-four thousand, sixty-three".