400132143 has 10 divisors (see below), whose sum is σ = 597728384. Its totient is φ = 266754708.

The previous prime is 400132121. The next prime is 400132147. The reversal of 400132143 is 341231004.

It is not a de Polignac number, because 400132143 - 2⁹ = 400131631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400132147) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2469871 + ... + 2470032.

Almost surely, 2^400132143 is an apocalyptic number.

400132143 is a deficient number, since it is larger than the sum of its proper divisors (197596241).

400132143 is an equidigital number, since it uses as much as digits as its factorization.

400132143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939915 (or 4939906 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 400132143 is about 20003.3033022049. The cubic root of 400132143 is about 736.8874272908.

Adding to 400132143 its reverse (341231004), we get a palindrome (741363147).

The spelling of 400132143 in words is "four hundred million, one hundred thirty-two thousand, one hundred forty-three".