143691164 has 12 divisors (see below), whose sum is σ = 251739600. Its totient is φ = 71765568.

The previous prime is 143691161. The next prime is 143691179. The reversal of 143691164 is 461196341.

It is a super-3 number, since 3×143691164³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143691161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15869 + ... + 23220.

It is an arithmetic number, because the mean of its divisors is an integer number (20978300).

Almost surely, 2^143691164 is an apocalyptic number.

It is an amenable number.

143691164 is a deficient number, since it is larger than the sum of its proper divisors (108048436).

143691164 is a wasteful number, since it uses less digits than its factorization.

143691164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40012 (or 40010 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 143691164 is about 11987.1249263533. The cubic root of 143691164 is about 523.7732980069.

The spelling of 143691164 in words is "one hundred forty-three million, six hundred ninety-one thousand, one hundred sixty-four".