145221203163 has 8 divisors (see below), whose sum is σ = 193650828048. Its totient is φ = 96802856864.

The previous prime is 145221203147. The next prime is 145221203173. The reversal of 145221203163 is 361302122541.

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 145221203163 - 2⁴ = 145221203147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145221203163.

It is not an unprimeable number, because it can be changed into a prime (145221203173) 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, 2789556 + ... + 2841137.

It is an arithmetic number, because the mean of its divisors is an integer number (24206353506).

Almost surely, 2^145221203163 is an apocalyptic number.

145221203163 is a deficient number, since it is larger than the sum of its proper divisors (48429624885).

145221203163 is an equidigital number, since it uses as much as digits as its factorization.

145221203163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639293.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 145221203163 in words is "one hundred forty-five billion, two hundred twenty-one million, two hundred three thousand, one hundred sixty-three".