145441222523 has 4 divisors (see below), whose sum is σ = 145617089400. Its totient is φ = 145265355648.

The previous prime is 145441222513. The next prime is 145441222529. The reversal of 145441222523 is 325222144541.

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 145441222523 - 2³² = 141146255227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145441222529) 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, 87932198 + ... + 87933851.

It is an arithmetic number, because the mean of its divisors is an integer number (36404272350).

Almost surely, 2^145441222523 is an apocalyptic number.

145441222523 is a deficient number, since it is larger than the sum of its proper divisors (175866877).

145441222523 is an equidigital number, since it uses as much as digits as its factorization.

145441222523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175866876.

The product of its digits is 76800, while the sum is 35.

The spelling of 145441222523 in words is "one hundred forty-five billion, four hundred forty-one million, two hundred twenty-two thousand, five hundred twenty-three".