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231479 is a prime number
BaseRepresentation
bin111000100000110111
3102202112022
4320200313
524401404
64543355
71652603
oct704067
9382468
10231479
11148a06
12b1b5b
1381491
1460503
15488be
hex38837

231479 has 2 divisors, whose sum is σ = 231480. Its totient is φ = 231478.

The previous prime is 231463. The next prime is 231481. The reversal of 231479 is 974132.

231479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231479 - 24 = 231463 is a prime.

Together with 231481, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231479.

It is not a weakly prime, because it can be changed into another prime (231409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115739 + 115740.

It is an arithmetic number, because the mean of its divisors is an integer number (115740).

2231479 is an apocalyptic number.

231479 is a deficient number, since it is larger than the sum of its proper divisors (1).

231479 is an equidigital number, since it uses as much as digits as its factorization.

231479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 231479 is about 481.1226454866. The cubic root of 231479 is about 61.4003055720.

The spelling of 231479 in words is "two hundred thirty-one thousand, four hundred seventy-nine".