231275005 has 16 divisors (see below), whose sum is σ = 311875200. Its totient is φ = 163361088.

The previous prime is 231274963. The next prime is 231275039. The reversal of 231275005 is 500572132.

It is not a de Polignac number, because 231275005 - 2¹³ = 231266813 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 75855 + ... + 78844.

It is an arithmetic number, because the mean of its divisors is an integer number (19492200).

Almost surely, 2^231275005 is an apocalyptic number.

It is an amenable number.

231275005 is a deficient number, since it is larger than the sum of its proper divisors (80600195).

231275005 is a wasteful number, since it uses less digits than its factorization.

231275005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154740.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 231275005 is about 15207.7284628573. The cubic root of 231275005 is about 613.8226356599.

The spelling of 231275005 in words is "two hundred thirty-one million, two hundred seventy-five thousand, five".