143680665 has 8 divisors (see below), whose sum is σ = 229889088. Its totient is φ = 76629680.

The previous prime is 143680643. The next prime is 143680699. The reversal of 143680665 is 566086341.

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

It is not a de Polignac number, because 143680665 - 2⁵ = 143680633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4789341 + ... + 4789370.

It is an arithmetic number, because the mean of its divisors is an integer number (28736136).

Almost surely, 2^143680665 is an apocalyptic number.

143680665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143680665 is a deficient number, since it is larger than the sum of its proper divisors (86208423).

143680665 is an equidigital number, since it uses as much as digits as its factorization.

143680665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9578719.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 143680665 is about 11986.6869901570. The cubic root of 143680665 is about 523.7605409483.

The spelling of 143680665 in words is "one hundred forty-three million, six hundred eighty thousand, six hundred sixty-five".