231982479 has 12 divisors (see below), whose sum is σ = 335536032. Its totient is φ = 154447200.

The previous prime is 231982477. The next prime is 231982507. The reversal of 231982479 is 974289132.

It is not a de Polignac number, because 231982479 - 2¹ = 231982477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231982477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10087 + ... + 23784.

It is an arithmetic number, because the mean of its divisors is an integer number (27961336).

Almost surely, 2^231982479 is an apocalyptic number.

231982479 is a deficient number, since it is larger than the sum of its proper divisors (103553553).

231982479 is a wasteful number, since it uses less digits than its factorization.

231982479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34638 (or 34635 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 231982479 is about 15230.9710458657. The cubic root of 231982479 is about 614.4478963388.

The spelling of 231982479 in words is "two hundred thirty-one million, nine hundred eighty-two thousand, four hundred seventy-nine".