213014531 has 4 divisors (see below), whose sum is σ = 213044832. Its totient is φ = 212984232.

The previous prime is 213014519. The next prime is 213014537. The reversal of 213014531 is 135410312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213014531 is a prime.

It is a super-2 number, since 2×213014531² = 90750380834299922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213014537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481 + ... + 20693.

It is an arithmetic number, because the mean of its divisors is an integer number (53261208).

Almost surely, 2^213014531 is an apocalyptic number.

213014531 is a deficient number, since it is larger than the sum of its proper divisors (30301).

213014531 is a wasteful number, since it uses less digits than its factorization.

213014531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30300.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 213014531 is about 14595.0173346934. The cubic root of 213014531 is about 597.2228423433. Note that the first 3 decimals are identical.

Adding to 213014531 its reverse (135410312), we get a palindrome (348424843).

It can be divided in two parts, 2130 and 14531, that added together give a palindrome (16661).

The spelling of 213014531 in words is "two hundred thirteen million, fourteen thousand, five hundred thirty-one".