145310553605023 has 4 divisors (see below), whose sum is σ = 145310644781280. Its totient is φ = 145310462428768.

The previous prime is 145310553605017. The next prime is 145310553605047. The reversal of 145310553605023 is 320506355013541.

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 145310553605023 - 2¹⁷ = 145310553473951 is a prime.

It is a super-2 number, since 2×145310553605023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145310553605123) 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, 43154215 + ... + 46399432.

It is an arithmetic number, because the mean of its divisors is an integer number (36327661195320).

Almost surely, 2^{145310553605023} is an apocalyptic number.

145310553605023 is a deficient number, since it is larger than the sum of its proper divisors (91176257).

145310553605023 is an equidigital number, since it uses as much as digits as its factorization.

145310553605023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91176256.

The product of its (nonzero) digits is 810000, while the sum is 43.

The spelling of 145310553605023 in words is "one hundred forty-five trillion, three hundred ten billion, five hundred fifty-three million, six hundred five thousand, twenty-three".