213331542 has 16 divisors (see below), whose sum is σ = 428122800. Its totient is φ = 70867232.

The previous prime is 213331451. The next prime is 213331549. The reversal of 213331542 is 245133312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213331549) 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, 58917 + ... + 62432.

It is an arithmetic number, because the mean of its divisors is an integer number (26757675).

Almost surely, 2^213331542 is an apocalyptic number.

213331542 is an abundant number, since it is smaller than the sum of its proper divisors (214791258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213331542 is a wasteful number, since it uses less digits than its factorization.

213331542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121647.

The product of its digits is 2160, while the sum is 24.

The square root of 213331542 is about 14605.8735445710. The cubic root of 213331542 is about 597.5189604343.

Adding to 213331542 its reverse (245133312), we get a palindrome (458464854).

The spelling of 213331542 in words is "two hundred thirteen million, three hundred thirty-one thousand, five hundred forty-two".