143740315161 has 27 divisors (see below), whose sum is σ = 212638026549. Its totient is φ = 93566497752.

The previous prime is 143740315123. The next prime is 143740315189. The reversal of 143740315161 is 161513047341.

The square root of 143740315161 is 379131.

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

143740315161 is a `hidden beast` number, since 1 + 43 + 7 + 403 + 151 + 61 = 666.

143740315161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143740315161 - 2¹⁷ = 143740184089 is a prime.

It is a super-2 number, since 2×143740315161² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143740313161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48906430 + ... + 48909368.

Almost surely, 2^143740315161 is an apocalyptic number.

143740315161 is the 379131-st square number.

143740315161 is the 189566-th centered octagonal number.

It is an amenable number.

143740315161 is a deficient number, since it is larger than the sum of its proper divisors (68897711388).

143740315161 is an frugal number, since it uses more digits than its factorization.

143740315161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5970 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Multiplying 143740315161 by its sum of digits (36), we get a square (5174651345796 = 2274786²).

The spelling of 143740315161 in words is "one hundred forty-three billion, seven hundred forty million, three hundred fifteen thousand, one hundred sixty-one".