143432269 has 2 divisors, whose sum is σ = 143432270. Its totient is φ = 143432268.

The previous prime is 143432249. The next prime is 143432299. The reversal of 143432269 is 962234341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99740169 + 43692100 = 9987^2 + 6610^2 .

It is an emirp because it is prime and its reverse (962234341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143432269 - 2²³ = 135043661 is a prime.

It is a super-2 number, since 2×143432269² = 41145631580976722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143432249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71716134 + 71716135.

It is an arithmetic number, because the mean of its divisors is an integer number (71716135).

Almost surely, 2^143432269 is an apocalyptic number.

It is an amenable number.

143432269 is a deficient number, since it is larger than the sum of its proper divisors (1).

143432269 is an equidigital number, since it uses as much as digits as its factorization.

143432269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 143432269 is about 11976.3211797279. The cubic root of 143432269 is about 523.4585400539.

The spelling of 143432269 in words is "one hundred forty-three million, four hundred thirty-two thousand, two hundred sixty-nine".