143431145 has 32 divisors (see below), whose sum is σ = 203575680. Its totient is φ = 96208320.

The previous prime is 143431139. The next prime is 143431157. The reversal of 143431145 is 541134341.

It is a happy number.

It is not a de Polignac number, because 143431145 - 2⁶ = 143431081 is a prime.

It is a super-2 number, since 2×143431145² = 41144986712022050, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 120242 + ... + 121428.

It is an arithmetic number, because the mean of its divisors is an integer number (6361740).

Almost surely, 2^143431145 is an apocalyptic number.

It is an amenable number.

143431145 is a deficient number, since it is larger than the sum of its proper divisors (60144535).

143431145 is a wasteful number, since it uses less digits than its factorization.

143431145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1216 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 143431145 is about 11976.2742537068. The cubic root of 143431145 is about 523.4571726979.

Adding to 143431145 its reverse (541134341), we get a palindrome (684565486).

The spelling of 143431145 in words is "one hundred forty-three million, four hundred thirty-one thousand, one hundred forty-five".