145235123 has 24 divisors (see below), whose sum is σ = 166837440. Its totient is φ = 125309520.

The previous prime is 145235117. The next prime is 145235137. The reversal of 145235123 is 321532541.

It is a happy number.

It is not a de Polignac number, because 145235123 - 2⁸ = 145234867 is a prime.

Its product of digits (3600) is a multiple of the sum of its prime divisors (240).

It is a junction number, because it is equal to n+sod(n) for n = 145235092 and 145235101.

It is not an unprimeable number, because it can be changed into a prime (145235173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1044788 + ... + 1044926.

It is an arithmetic number, because the mean of its divisors is an integer number (6951560).

Almost surely, 2^145235123 is an apocalyptic number.

145235123 is a deficient number, since it is larger than the sum of its proper divisors (21602317).

145235123 is a wasteful number, since it uses less digits than its factorization.

145235123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 240 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 145235123 is about 12051.3535754288. The cubic root of 145235123 is about 525.6425969688.

Adding to 145235123 its reverse (321532541), we get a palindrome (466767664).

The spelling of 145235123 in words is "one hundred forty-five million, two hundred thirty-five thousand, one hundred twenty-three".