143625643 has 4 divisors (see below), whose sum is σ = 164143600. Its totient is φ = 123107688.

The previous prime is 143625631. The next prime is 143625653. The reversal of 143625643 is 346526341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143625643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143625599 and 143625608.

It is not an unprimeable number, because it can be changed into a prime (143625623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10258968 + ... + 10258981.

It is an arithmetic number, because the mean of its divisors is an integer number (41035900).

Almost surely, 2^143625643 is an apocalyptic number.

143625643 is a deficient number, since it is larger than the sum of its proper divisors (20517957).

143625643 is an equidigital number, since it uses as much as digits as its factorization.

143625643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20517956.

The product of its digits is 51840, while the sum is 34.

The square root of 143625643 is about 11984.3916407968. The cubic root of 143625643 is about 523.6936749997.

The spelling of 143625643 in words is "one hundred forty-three million, six hundred twenty-five thousand, six hundred forty-three".