213531351 has 32 divisors (see below), whose sum is σ = 317634048. Its totient is φ = 126512640.

The previous prime is 213531341. The next prime is 213531359. The reversal of 213531351 is 153135312.

It is not a de Polignac number, because 213531351 - 2⁵ = 213531319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213531359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329710 + ... + 330356.

It is an arithmetic number, because the mean of its divisors is an integer number (9926064).

Almost surely, 2^213531351 is an apocalyptic number.

213531351 is a deficient number, since it is larger than the sum of its proper divisors (104102697).

213531351 is a wasteful number, since it uses less digits than its factorization.

213531351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its digits is 1350, while the sum is 24.

The square root of 213531351 is about 14612.7119659562. The cubic root of 213531351 is about 597.7054501430.

Adding to 213531351 its reverse (153135312), we get a palindrome (366666663).

The spelling of 213531351 in words is "two hundred thirteen million, five hundred thirty-one thousand, three hundred fifty-one".