143900146 has 24 divisors (see below), whose sum is σ = 240782724. Its totient is φ = 64115520.

The previous prime is 143900111. The next prime is 143900147. The reversal of 143900146 is 641009341.

It can be written as a sum of positive squares in 6 ways, for example, as 30371121 + 113529025 = 5511^2 + 10655^2 .

It is not an unprimeable number, because it can be changed into a prime (143900147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18576 + ... + 25156.

Almost surely, 2^143900146 is an apocalyptic number.

143900146 is a deficient number, since it is larger than the sum of its proper divisors (96882578).

143900146 is a wasteful number, since it uses less digits than its factorization.

143900146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6654 (or 6625 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 143900146 is about 11995.8386951476. The cubic root of 143900146 is about 524.0270973497.

Adding to 143900146 its reverse (641009341), we get a palindrome (784909487).

The spelling of 143900146 in words is "one hundred forty-three million, nine hundred thousand, one hundred forty-six".