231451016 has 32 divisors (see below), whose sum is σ = 438553440. Its totient is φ = 114511488.

The previous prime is 231451013. The next prime is 231451049. The reversal of 231451016 is 610154132.

231451016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 231450982 and 231451000.

It is not an unprimeable number, because it can be changed into a prime (231451013) 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, 422855 + ... + 423401.

It is an arithmetic number, because the mean of its divisors is an integer number (13704795).

Almost surely, 2^231451016 is an apocalyptic number.

It is an amenable number.

231451016 is a deficient number, since it is larger than the sum of its proper divisors (207102424).

231451016 is a wasteful number, since it uses less digits than its factorization.

231451016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 231451016 is about 15213.5142554244. The cubic root of 231451016 is about 613.9783120012.

The spelling of 231451016 in words is "two hundred thirty-one million, four hundred fifty-one thousand, sixteen".