143252121 has 8 divisors (see below), whose sum is σ = 191061504. Its totient is φ = 95472080.

The previous prime is 143252117. The next prime is 143252167. The reversal of 143252121 is 121252341.

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 143252121 - 2² = 143252117 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143252111) 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 7 ways as a sum of consecutive naturals, for example, 9736 + ... + 19526.

It is an arithmetic number, because the mean of its divisors is an integer number (23882688).

Almost surely, 2^143252121 is an apocalyptic number.

It is an amenable number.

143252121 is a deficient number, since it is larger than the sum of its proper divisors (47809383).

143252121 is an equidigital number, since it uses as much as digits as its factorization.

143252121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14671.

The product of its digits is 480, while the sum is 21.

The square root of 143252121 is about 11968.7978093040. The cubic root of 143252121 is about 523.2392971622.

The spelling of 143252121 in words is "one hundred forty-three million, two hundred fifty-two thousand, one hundred twenty-one".