231406013 has 8 divisors (see below), whose sum is σ = 243958848. Its totient is φ = 219060864.

The previous prime is 231405991. The next prime is 231406037. The reversal of 231406013 is 310604132.

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 231406013 - 2¹⁶ = 231340477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231406093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49631 + ... + 54092.

It is an arithmetic number, because the mean of its divisors is an integer number (30494856).

Almost surely, 2^231406013 is an apocalyptic number.

231406013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231406013 is a deficient number, since it is larger than the sum of its proper divisors (12552835).

231406013 is a wasteful number, since it uses less digits than its factorization.

231406013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103843.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 231406013 is about 15212.0351366936. The cubic root of 231406013 is about 613.9385157375.

The spelling of 231406013 in words is "two hundred thirty-one million, four hundred six thousand, thirteen".