143160421164521 has 4 divisors (see below), whose sum is σ = 150695180173200. Its totient is φ = 135625662155844.

The previous prime is 143160421164517. The next prime is 143160421164641. The reversal of 143160421164521 is 125461124061341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143160421164521 - 2² = 143160421164517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143160421164721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3767379504311 + ... + 3767379504348.

It is an arithmetic number, because the mean of its divisors is an integer number (37673795043300).

Almost surely, 2^{143160421164521} is an apocalyptic number.

It is an amenable number.

143160421164521 is a deficient number, since it is larger than the sum of its proper divisors (7534759008679).

143160421164521 is an equidigital number, since it uses as much as digits as its factorization.

143160421164521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7534759008678.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 143160421164521 in words is "one hundred forty-three trillion, one hundred sixty billion, four hundred twenty-one million, one hundred sixty-four thousand, five hundred twenty-one".