231146743 has 2 divisors, whose sum is σ = 231146744. Its totient is φ = 231146742.

The previous prime is 231146701. The next prime is 231146753. The reversal of 231146743 is 347641132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231146743 - 2²¹ = 229049591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231146753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115573371 + 115573372.

It is an arithmetic number, because the mean of its divisors is an integer number (115573372).

Almost surely, 2^231146743 is an apocalyptic number.

231146743 is a deficient number, since it is larger than the sum of its proper divisors (1).

231146743 is an equidigital number, since it uses as much as digits as its factorization.

231146743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 231146743 is about 15203.5108774256. The cubic root of 231146743 is about 613.7091420904.

Adding to 231146743 its reverse (347641132), we get a palindrome (578787875).

The spelling of 231146743 in words is "two hundred thirty-one million, one hundred forty-six thousand, seven hundred forty-three".