143121156 has 12 divisors (see below), whose sum is σ = 333949392. Its totient is φ = 47707048.

The previous prime is 143121149. The next prime is 143121163. The reversal of 143121156 is 651121341.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (143121149) and next prime (143121163).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5963370 + ... + 5963393.

It is an arithmetic number, because the mean of its divisors is an integer number (27829116).

Almost surely, 2^143121156 is an apocalyptic number.

It is an amenable number.

143121156 is an abundant number, since it is smaller than the sum of its proper divisors (190828236).

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

143121156 is a wasteful number, since it uses less digits than its factorization.

143121156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11926770 (or 11926768 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 143121156 is about 11963.3254574136. The cubic root of 143121156 is about 523.0797953285.

Adding to 143121156 its reverse (651121341), we get a palindrome (794242497).

The spelling of 143121156 in words is "one hundred forty-three million, one hundred twenty-one thousand, one hundred fifty-six".