231016156 has 24 divisors (see below), whose sum is σ = 465141600. Its totient is φ = 98340672.

The previous prime is 231016153. The next prime is 231016157. The reversal of 231016156 is 651610132.

231016156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231016156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231016153) 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, 23515 + ... + 31858.

It is an arithmetic number, because the mean of its divisors is an integer number (19380900).

Almost surely, 2^231016156 is an apocalyptic number.

It is an amenable number.

231016156 is an abundant number, since it is smaller than the sum of its proper divisors (234125444).

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

231016156 is a wasteful number, since it uses less digits than its factorization.

231016156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55533 (or 55531 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 231016156 is about 15199.2156376571. The cubic root of 231016156 is about 613.5935480862.

Adding to 231016156 its reverse (651610132), we get a palindrome (882626288).

The spelling of 231016156 in words is "two hundred thirty-one million, sixteen thousand, one hundred fifty-six".