143552065 has 4 divisors (see below), whose sum is σ = 172262484. Its totient is φ = 114841648.

The previous prime is 143552021. The next prime is 143552077. The reversal of 143552065 is 560255341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22353984 + 121198081 = 4728^2 + 11009^2 .

It is a cyclic number.

It is not a de Polignac number, because 143552065 - 2²⁷ = 9334337 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14355202 + ... + 14355211.

It is an arithmetic number, because the mean of its divisors is an integer number (43065621).

Almost surely, 2^143552065 is an apocalyptic number.

It is an amenable number.

143552065 is a deficient number, since it is larger than the sum of its proper divisors (28710419).

143552065 is an equidigital number, since it uses as much as digits as its factorization.

143552065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28710418.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 143552065 is about 11981.3215047423. The cubic root of 143552065 is about 523.6042320232.

The spelling of 143552065 in words is "one hundred forty-three million, five hundred fifty-two thousand, sixty-five".