231016542 has 16 divisors (see below), whose sum is σ = 462346752. Its totient is φ = 76953240.

The previous prime is 231016517. The next prime is 231016543. The reversal of 231016542 is 245610132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231016543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2884 + ... + 21687.

It is an arithmetic number, because the mean of its divisors is an integer number (28896672).

Almost surely, 2^231016542 is an apocalyptic number.

231016542 is an abundant number, since it is smaller than the sum of its proper divisors (231330210).

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

231016542 is a wasteful number, since it uses less digits than its factorization.

231016542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26143.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 231016542 is about 15199.2283356755. The cubic root of 231016542 is about 613.5938898328.

Adding to 231016542 its reverse (245610132), we get a palindrome (476626674).

The spelling of 231016542 in words is "two hundred thirty-one million, sixteen thousand, five hundred forty-two".