231376005 has 48 divisors (see below), whose sum is σ = 467026560. Its totient is φ = 103768704.

The previous prime is 231375979. The next prime is 231376009. The reversal of 231376005 is 500673132.

It is a happy number.

231376005 is a `hidden beast` number, since 23 + 1 + 37 + 600 + 5 = 666.

It is not a de Polignac number, because 231376005 - 2⁵ = 231375973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231376005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231376009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9766 + ... + 23624.

It is an arithmetic number, because the mean of its divisors is an integer number (9729720).

Almost surely, 2^231376005 is an apocalyptic number.

It is an amenable number.

231376005 is an abundant number, since it is smaller than the sum of its proper divisors (235650555).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231376005 is a wasteful number, since it uses less digits than its factorization.

231376005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13930 (or 13927 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 231376005 is about 15211.0487804096. The cubic root of 231376005 is about 613.9119767218.

The spelling of 231376005 in words is "two hundred thirty-one million, three hundred seventy-six thousand, five".