231541459 has 2 divisors, whose sum is σ = 231541460. Its totient is φ = 231541458.

The previous prime is 231541441. The next prime is 231541493. The reversal of 231541459 is 954145132.

It is an a-pointer prime, because the next prime (231541493) can be obtained adding 231541459 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231541459 - 2¹¹ = 231539411 is a prime.

It is a super-2 number, since 2×231541459² = 107222894471697362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231541439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115770729 + 115770730.

It is an arithmetic number, because the mean of its divisors is an integer number (115770730).

Almost surely, 2^231541459 is an apocalyptic number.

231541459 is a deficient number, since it is larger than the sum of its proper divisors (1).

231541459 is an equidigital number, since it uses as much as digits as its factorization.

231541459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 231541459 is about 15216.4864209843. The cubic root of 231541459 is about 614.0582753702.

The spelling of 231541459 in words is "two hundred thirty-one million, five hundred forty-one thousand, four hundred fifty-nine".