231825997 has 8 divisors (see below), whose sum is σ = 249812640. Its totient is φ = 213861360.

The previous prime is 231825977. The next prime is 231826019. The reversal of 231825997 is 799528132.

231825997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231825997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231825977) 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, 21222 + ... + 30232.

It is an arithmetic number, because the mean of its divisors is an integer number (31226580).

Almost surely, 2^231825997 is an apocalyptic number.

It is an amenable number.

231825997 is a deficient number, since it is larger than the sum of its proper divisors (17986643).

231825997 is a wasteful number, since it uses less digits than its factorization.

231825997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003.

The product of its digits is 272160, while the sum is 46.

The square root of 231825997 is about 15225.8332120117. The cubic root of 231825997 is about 614.3097082260.

The spelling of 231825997 in words is "two hundred thirty-one million, eight hundred twenty-five thousand, nine hundred ninety-seven".