231413997 has 8 divisors (see below), whose sum is σ = 319191840. Its totient is φ = 148956080.

The previous prime is 231413983. The next prime is 231413999. The reversal of 231413997 is 799314132.

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

It is a cyclic number.

It is not a de Polignac number, because 231413997 - 2⁶ = 231413933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231413999) 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, 1329879 + ... + 1330052.

It is an arithmetic number, because the mean of its divisors is an integer number (39898980).

Almost surely, 2^231413997 is an apocalyptic number.

It is an amenable number.

231413997 is a deficient number, since it is larger than the sum of its proper divisors (87777843).

231413997 is a wasteful number, since it uses less digits than its factorization.

231413997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659963.

The product of its digits is 40824, while the sum is 39.

The square root of 231413997 is about 15212.2975582257. The cubic root of 231413997 is about 613.9455763848.

The spelling of 231413997 in words is "two hundred thirty-one million, four hundred thirteen thousand, nine hundred ninety-seven".