143161131 has 48 divisors (see below), whose sum is σ = 219635712. Its totient is φ = 82494720.

The previous prime is 143161129. The next prime is 143161159. The reversal of 143161131 is 131161341.

It is not a de Polignac number, because 143161131 - 2¹ = 143161129 is a prime.

It is a super-2 number, since 2×143161131² = 40990218858398322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143161098 and 143161107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143161121) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1127190 + ... + 1127316.

It is an arithmetic number, because the mean of its divisors is an integer number (4575744).

Almost surely, 2^143161131 is an apocalyptic number.

143161131 is a deficient number, since it is larger than the sum of its proper divisors (76474581).

143161131 is a wasteful number, since it uses less digits than its factorization.

143161131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 201 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 143161131 is about 11964.9960718757. The cubic root of 143161131 is about 523.1284910604.

The spelling of 143161131 in words is "one hundred forty-three million, one hundred sixty-one thousand, one hundred thirty-one".