231024149 has 2 divisors, whose sum is σ = 231024150. Its totient is φ = 231024148.

The previous prime is 231024139. The next prime is 231024151. The reversal of 231024149 is 941420132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125037124 + 105987025 = 11182^2 + 10295^2 .

It is a cyclic number.

It is not a de Polignac number, because 231024149 - 2¹⁶ = 230958613 is a prime.

Together with 231024151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231024139) 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, 115512074 + 115512075.

It is an arithmetic number, because the mean of its divisors is an integer number (115512075).

Almost surely, 2^231024149 is an apocalyptic number.

It is an amenable number.

231024149 is a deficient number, since it is larger than the sum of its proper divisors (1).

231024149 is an equidigital number, since it uses as much as digits as its factorization.

231024149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 231024149 is about 15199.4785765828. The cubic root of 231024149 is about 613.6006246428.

The spelling of 231024149 in words is "two hundred thirty-one million, twenty-four thousand, one hundred forty-nine".