145025123 has 4 divisors (see below), whose sum is σ = 145360488. Its totient is φ = 144689760.

The previous prime is 145025093. The next prime is 145025129. The reversal of 145025123 is 321520541.

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 145025123 - 2¹⁴ = 145008739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145025129) 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, 167033 + ... + 167898.

It is an arithmetic number, because the mean of its divisors is an integer number (36340122).

Almost surely, 2^145025123 is an apocalyptic number.

145025123 is a deficient number, since it is larger than the sum of its proper divisors (335365).

145025123 is an equidigital number, since it uses as much as digits as its factorization.

145025123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335364.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 145025123 is about 12042.6377094057. The cubic root of 145025123 is about 525.3891270806.

Adding to 145025123 its reverse (321520541), we get a palindrome (466545664).

The spelling of 145025123 in words is "one hundred forty-five million, twenty-five thousand, one hundred twenty-three".