231541027 has 2 divisors, whose sum is σ = 231541028. Its totient is φ = 231541026.

The previous prime is 231541007. The next prime is 231541039. The reversal of 231541027 is 720145132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231541027 - 2¹⁹ = 231016739 is a prime.

It is a super-2 number, since 2×231541027² = 107222494368429458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231540992 and 231541010.

It is not a weakly prime, because it can be changed into another prime (231541007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115770513 + 115770514.

It is an arithmetic number, because the mean of its divisors is an integer number (115770514).

Almost surely, 2^231541027 is an apocalyptic number.

231541027 is a deficient number, since it is larger than the sum of its proper divisors (1).

231541027 is an equidigital number, since it uses as much as digits as its factorization.

231541027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 231541027 is about 15216.4722258479. The cubic root of 231541027 is about 614.0578934755.

Adding to 231541027 its reverse (720145132), we get a palindrome (951686159).

The spelling of 231541027 in words is "two hundred thirty-one million, five hundred forty-one thousand, twenty-seven".