145323145 has 8 divisors (see below), whose sum is σ = 190241280. Its totient is φ = 105689520.

The previous prime is 145323109. The next prime is 145323151. The reversal of 145323145 is 541323541.

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

It is a de Polignac number, because none of the positive numbers 2^k-145323145 is a prime.

It is a super-2 number, since 2×145323145² = 42237632945382050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321065 + ... + 1321174.

It is an arithmetic number, because the mean of its divisors is an integer number (23780160).

Almost surely, 2^145323145 is an apocalyptic number.

It is an amenable number.

145323145 is a deficient number, since it is larger than the sum of its proper divisors (44918135).

145323145 is a wasteful number, since it uses less digits than its factorization.

145323145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642255.

The product of its digits is 7200, while the sum is 28.

The square root of 145323145 is about 12055.0049771869. The cubic root of 145323145 is about 525.7487668072.

Adding to 145323145 its reverse (541323541), we get a palindrome (686646686).

The spelling of 145323145 in words is "one hundred forty-five million, three hundred twenty-three thousand, one hundred forty-five".