231273398 has 8 divisors (see below), whose sum is σ = 346990392. Its totient is φ = 115609936.

The previous prime is 231273391. The next prime is 231273409. The reversal of 231273398 is 893372132.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231273391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161 + ... + 21507.

It is an arithmetic number, because the mean of its divisors is an integer number (43373799).

Almost surely, 2^231273398 is an apocalyptic number.

231273398 is a deficient number, since it is larger than the sum of its proper divisors (115716994).

231273398 is a wasteful number, since it uses less digits than its factorization.

231273398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26766.

The product of its digits is 54432, while the sum is 38.

The square root of 231273398 is about 15207.6756277874. The cubic root of 231273398 is about 613.8212139538.

The spelling of 231273398 in words is "two hundred thirty-one million, two hundred seventy-three thousand, three hundred ninety-eight".