143761345 has 24 divisors (see below), whose sum is σ = 216120744. Its totient is φ = 90994176.

The previous prime is 143761337. The next prime is 143761349. The reversal of 143761345 is 543167341.

It can be written as a sum of positive squares in 4 ways, for example, as 815409 + 142945936 = 903^2 + 11956^2 .

It is not a de Polignac number, because 143761345 - 2³ = 143761337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143761345.

It is not an unprimeable number, because it can be changed into a prime (143761349) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 19384 + ... + 25753.

It is an arithmetic number, because the mean of its divisors is an integer number (9005031).

Almost surely, 2^143761345 is an apocalyptic number.

It is an amenable number.

143761345 is a deficient number, since it is larger than the sum of its proper divisors (72359399).

143761345 is a wasteful number, since it uses less digits than its factorization.

143761345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45169 (or 45162 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 143761345 is about 11990.0519181528. The cubic root of 143761345 is about 523.8585571369.

The spelling of 143761345 in words is "one hundred forty-three million, seven hundred sixty-one thousand, three hundred forty-five".