143254994231 has 2 divisors, whose sum is σ = 143254994232. Its totient is φ = 143254994230.

The previous prime is 143254994177. The next prime is 143254994249. The reversal of 143254994231 is 132499452341.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143254994231 is a prime.

It is a super-2 number, since 2×143254994231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143254994251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71627497115 + 71627497116.

It is an arithmetic number, because the mean of its divisors is an integer number (71627497116).

Almost surely, 2^143254994231 is an apocalyptic number.

143254994231 is a deficient number, since it is larger than the sum of its proper divisors (1).

143254994231 is an equidigital number, since it uses as much as digits as its factorization.

143254994231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 47.

The spelling of 143254994231 in words is "one hundred forty-three billion, two hundred fifty-four million, nine hundred ninety-four thousand, two hundred thirty-one".