143225555 has 8 divisors (see below), whose sum is σ = 187495344. Its totient is φ = 104164000.

The previous prime is 143225539. The next prime is 143225567. The reversal of 143225555 is 555522341.

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

It is not a de Polignac number, because 143225555 - 2⁴ = 143225539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301996 + ... + 1302105.

It is an arithmetic number, because the mean of its divisors is an integer number (23436918).

Almost surely, 2^143225555 is an apocalyptic number.

143225555 is a deficient number, since it is larger than the sum of its proper divisors (44269789).

143225555 is a wasteful number, since it uses less digits than its factorization.

143225555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604117.

The product of its digits is 30000, while the sum is 32.

The square root of 143225555 is about 11967.6879554908. The cubic root of 143225555 is about 523.2069503822.

Adding to 143225555 its reverse (555522341), we get a palindrome (698747896).

The spelling of 143225555 in words is "one hundred forty-three million, two hundred twenty-five thousand, five hundred fifty-five".