143225551 has 8 divisors (see below), whose sum is σ = 163792160. Its totient is φ = 122685408.

The previous prime is 143225539. The next prime is 143225567. The reversal of 143225551 is 155522341.

143225551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 143225551 - 2¹³ = 143217359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143225581) 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, 6805 + ... + 18241.

It is an arithmetic number, because the mean of its divisors is an integer number (20474020).

Almost surely, 2^143225551 is an apocalyptic number.

143225551 is a deficient number, since it is larger than the sum of its proper divisors (20566609).

143225551 is a wasteful number, since it uses less digits than its factorization.

143225551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13233.

The product of its digits is 6000, while the sum is 28.

The square root of 143225551 is about 11967.6877883742. The cubic root of 143225551 is about 523.2069455115.

Adding to 143225551 its reverse (155522341), we get a palindrome (298747892).

The spelling of 143225551 in words is "one hundred forty-three million, two hundred twenty-five thousand, five hundred fifty-one".