231403548 has 12 divisors (see below), whose sum is σ = 539941640. Its totient is φ = 77134512.

The previous prime is 231403517. The next prime is 231403559. The reversal of 231403548 is 845304132.

231403548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9641803 + ... + 9641826.

Almost surely, 2^231403548 is an apocalyptic number.

It is an amenable number.

231403548 is an abundant number, since it is smaller than the sum of its proper divisors (308538092).

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

231403548 is a wasteful number, since it uses less digits than its factorization.

231403548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19283636 (or 19283634 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 231403548 is about 15211.9541151030. The cubic root of 231403548 is about 613.9363357829.

The spelling of 231403548 in words is "two hundred thirty-one million, four hundred three thousand, five hundred forty-eight".