145563255021203 has 4 divisors (see below), whose sum is σ = 146187990021528. Its totient is φ = 144938520020880.

The previous prime is 145563255021179. The next prime is 145563255021287. The reversal of 145563255021203 is 302120552365541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145563255021203 - 2⁸ = 145563255020947 is a prime.

It is a super-2 number, since 2×145563255021203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145563255024203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312367499813 + ... + 312367500278.

It is an arithmetic number, because the mean of its divisors is an integer number (36546997505382).

Almost surely, 2^{145563255021203} is an apocalyptic number.

145563255021203 is a deficient number, since it is larger than the sum of its proper divisors (624735000325).

145563255021203 is an equidigital number, since it uses as much as digits as its factorization.

145563255021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624735000324.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 145563255021203 in words is "one hundred forty-five trillion, five hundred sixty-three billion, two hundred fifty-five million, twenty-one thousand, two hundred three".