143320769 has 8 divisors (see below), whose sum is σ = 144756480. Its totient is φ = 141890976.

The previous prime is 143320757. The next prime is 143320777. The reversal of 143320769 is 967023341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143320769 - 2⁴ = 143320753 is a prime.

It is a super-2 number, since 2×143320769² = 41081685653502722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143320739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58952 + ... + 61334.

It is an arithmetic number, because the mean of its divisors is an integer number (18094560).

Almost surely, 2^143320769 is an apocalyptic number.

It is an amenable number.

143320769 is a deficient number, since it is larger than the sum of its proper divisors (1435711).

143320769 is a wasteful number, since it uses less digits than its factorization.

143320769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 143320769 is about 11971.6652559283. The cubic root of 143320769 is about 523.3228645000.

The spelling of 143320769 in words is "one hundred forty-three million, three hundred twenty thousand, seven hundred sixty-nine".