143551121 has 8 divisors (see below), whose sum is σ = 164795904. Its totient is φ = 122490720.

The previous prime is 143551103. The next prime is 143551141. The reversal of 143551121 is 121155341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143551121 - 2¹⁰ = 143550097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143551141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44420 + ... + 47541.

It is an arithmetic number, because the mean of its divisors is an integer number (20599488).

Almost surely, 2^143551121 is an apocalyptic number.

It is an amenable number.

143551121 is a deficient number, since it is larger than the sum of its proper divisors (21244783).

143551121 is an equidigital number, since it uses as much as digits as its factorization.

143551121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92191.

The product of its digits is 600, while the sum is 23.

The square root of 143551121 is about 11981.2821100248. The cubic root of 143551121 is about 523.6030842783.

The spelling of 143551121 in words is "one hundred forty-three million, five hundred fifty-one thousand, one hundred twenty-one".