143131318929 has 27 divisors (see below), whose sum is σ = 216164409097. Its totient is φ = 91255499016.

The previous prime is 143131318859. The next prime is 143131318937. The reversal of 143131318929 is 929813131341.

The square root of 143131318929 is 378327.

It is a perfect power (a square), and thus also a powerful number.

143131318929 is a `hidden beast` number, since 1 + 431 + 3 + 13 + 189 + 29 = 666.

It is not a de Polignac number, because 143131318929 - 2⁷ = 143131318801 is a prime.

It is a super-2 number, since 2×143131318929² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143131316929) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26101822 + ... + 26107304.

Almost surely, 2^143131318929 is an apocalyptic number.

143131318929 is the 378327-th square number.

143131318929 is the 189164-th centered octagonal number.

It is an amenable number.

143131318929 is a deficient number, since it is larger than the sum of its proper divisors (73033090168).

143131318929 is an frugal number, since it uses more digits than its factorization.

143131318929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11018 (or 5509 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 143131318929 in words is "one hundred forty-three billion, one hundred thirty-one million, three hundred eighteen thousand, nine hundred twenty-nine".