143226745 has 4 divisors (see below), whose sum is σ = 171872100. Its totient is φ = 114581392.

The previous prime is 143226739. The next prime is 143226749. The reversal of 143226745 is 547622341.

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 78198649 + 65028096 = 8843^2 + 8064^2 .

It is a cyclic number.

It is not a de Polignac number, because 143226745 - 2²⁷ = 9009017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143226745.

It is not an unprimeable number, because it can be changed into a prime (143226749) 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, 14322670 + ... + 14322679.

It is an arithmetic number, because the mean of its divisors is an integer number (42968025).

Almost surely, 2^143226745 is an apocalyptic number.

It is an amenable number.

143226745 is a deficient number, since it is larger than the sum of its proper divisors (28645355).

143226745 is an equidigital number, since it uses as much as digits as its factorization.

143226745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28645354.

The product of its digits is 40320, while the sum is 34.

The square root of 143226745 is about 11967.7376725929. The cubic root of 143226745 is about 523.2083994126.

The spelling of 143226745 in words is "one hundred forty-three million, two hundred twenty-six thousand, seven hundred forty-five".