145225423 has 8 divisors (see below), whose sum is σ = 166083200. Its totient is φ = 124395480.

The previous prime is 145225391. The next prime is 145225433. The reversal of 145225423 is 324522541.

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 145225423 - 2⁵ = 145225391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145225391 and 145225400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145225433) 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, 5788 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (20760400).

Almost surely, 2^145225423 is an apocalyptic number.

145225423 is a deficient number, since it is larger than the sum of its proper divisors (20857777).

145225423 is a wasteful number, since it uses less digits than its factorization.

145225423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13917.

The product of its digits is 9600, while the sum is 28.

The square root of 145225423 is about 12050.9511242889. The cubic root of 145225423 is about 525.6308944581.

Adding to 145225423 its reverse (324522541), we get a palindrome (469747964).

The spelling of 145225423 in words is "one hundred forty-five million, two hundred twenty-five thousand, four hundred twenty-three".