145322123 has 8 divisors (see below), whose sum is σ = 146188800. Its totient is φ = 144458728.

The previous prime is 145322113. The next prime is 145322147. The reversal of 145322123 is 321223541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145322123 - 2⁶ = 145322059 is a prime.

It is a super-2 number, since 2×145322123² = 42237038866454258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145322113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201758 + ... + 202476.

It is an arithmetic number, because the mean of its divisors is an integer number (18273600).

Almost surely, 2^145322123 is an apocalyptic number.

145322123 is a deficient number, since it is larger than the sum of its proper divisors (866677).

145322123 is an equidigital number, since it uses as much as digits as its factorization.

145322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its digits is 1440, while the sum is 23.

The square root of 145322123 is about 12054.9625880796. The cubic root of 145322123 is about 525.7475343435.

Adding to 145322123 its reverse (321223541), we get a palindrome (466545664).

The spelling of 145322123 in words is "one hundred forty-five million, three hundred twenty-two thousand, one hundred twenty-three".