123300145 has 4 divisors (see below), whose sum is σ = 147960180. Its totient is φ = 98640112.

The previous prime is 123300131. The next prime is 123300187. The reversal of 123300145 is 541003321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48944016 + 74356129 = 6996^2 + 8623^2 .

It is a cyclic number.

It is not a de Polignac number, because 123300145 - 2⁷ = 123300017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12330010 + ... + 12330019.

It is an arithmetic number, because the mean of its divisors is an integer number (36990045).

Almost surely, 2^123300145 is an apocalyptic number.

It is an amenable number.

123300145 is a deficient number, since it is larger than the sum of its proper divisors (24660035).

123300145 is an equidigital number, since it uses as much as digits as its factorization.

123300145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24660034.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 123300145 is about 11104.0598431385. The cubic root of 123300145 is about 497.7231745355.

Adding to 123300145 its reverse (541003321), we get a palindrome (664303466).

The spelling of 123300145 in words is "one hundred twenty-three million, three hundred thousand, one hundred forty-five".