145445123 has 8 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 138534088.

The previous prime is 145445107. The next prime is 145445129. The reversal of 145445123 is 321544541.

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 145445123 - 2⁴ = 145445107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145445129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7733 + ... + 18726.

It is an arithmetic number, because the mean of its divisors is an integer number (19051200).

Almost surely, 2^145445123 is an apocalyptic number.

145445123 is a deficient number, since it is larger than the sum of its proper divisors (6964477).

145445123 is a wasteful number, since it uses less digits than its factorization.

145445123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26721.

The product of its digits is 9600, while the sum is 29.

The square root of 145445123 is about 12060.0631424549. The cubic root of 145445123 is about 525.8958226412.

Adding to 145445123 its reverse (321544541), we get a palindrome (466989664).

The spelling of 145445123 in words is "one hundred forty-five million, four hundred forty-five thousand, one hundred twenty-three".