231261395 has 8 divisors (see below), whose sum is σ = 286465920. Its totient is φ = 179040960.

The previous prime is 231261391. The next prime is 231261397. The reversal of 231261395 is 593162132.

231261395 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 not a de Polignac number, because 231261395 - 2² = 231261391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231261391) 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, 745850 + ... + 746159.

It is an arithmetic number, because the mean of its divisors is an integer number (35808240).

Almost surely, 2^231261395 is an apocalyptic number.

231261395 is a deficient number, since it is larger than the sum of its proper divisors (55204525).

231261395 is a wasteful number, since it uses less digits than its factorization.

231261395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492045.

The product of its digits is 9720, while the sum is 32.

The square root of 231261395 is about 15207.2809864223. The cubic root of 231261395 is about 613.8105947422.

The spelling of 231261395 in words is "two hundred thirty-one million, two hundred sixty-one thousand, three hundred ninety-five".