143226230261 has 2 divisors, whose sum is σ = 143226230262. Its totient is φ = 143226230260.

The previous prime is 143226230233. The next prime is 143226230333. The reversal of 143226230261 is 162032622341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114849143236 + 28377087025 = 338894^2 + 168455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143226230261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143226230561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71613115130 + 71613115131.

It is an arithmetic number, because the mean of its divisors is an integer number (71613115131).

Almost surely, 2^143226230261 is an apocalyptic number.

It is an amenable number.

143226230261 is a deficient number, since it is larger than the sum of its proper divisors (1).

143226230261 is an equidigital number, since it uses as much as digits as its factorization.

143226230261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 143226230261 in words is "one hundred forty-three billion, two hundred twenty-six million, two hundred thirty thousand, two hundred sixty-one".