231970 has 8 divisors (see below), whose sum is σ = 417564. Its totient is φ = 92784.

The previous prime is 231967. The next prime is 232003. The reversal of 231970 is 79132.

It can be written as a sum of positive squares in 2 ways, for example, as 196249 + 35721 = 443^2 + 189^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11589 + ... + 11608.

2²³¹⁹⁷⁰ is an apocalyptic number.

231970 is a deficient number, since it is larger than the sum of its proper divisors (185594).

231970 is a wasteful number, since it uses less digits than its factorization.

231970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23204.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 231970 is about 481.6326400899. The cubic root of 231970 is about 61.4436878506.

The spelling of 231970 in words is "two hundred thirty-one thousand, nine hundred seventy".