143131000 has 64 divisors (see below), whose sum is σ = 343193760. Its totient is φ = 55840000.

The previous prime is 143130997. The next prime is 143131019. The reversal of 143131000 is 131341.

It is a super-2 number, since 2×143131000² = 40972966322000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39255 + ... + 42745.

Almost surely, 2^143131000 is an apocalyptic number.

143131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171596880).

143131000 is an abundant number, since it is smaller than the sum of its proper divisors (200062760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143131000 is a wasteful number, since it uses less digits than its factorization.

143131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 143131000 is about 11963.7368744051. The cubic root of 143131000 is about 523.0917876842.

Adding to 143131000 its reverse (131341), we get a palindrome (143262341).

The spelling of 143131000 in words is "one hundred forty-three million, one hundred thirty-one thousand".