23280145145 has 8 divisors (see below), whose sum is σ = 27937405320. Its totient is φ = 18623295360.

The previous prime is 23280145127. The next prime is 23280145153. The reversal of 23280145145 is 54154108232.

It can be written as a sum of positive squares in 4 ways, for example, as 7571784256 + 15708360889 = 87016^2 + 125333^2 .

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

It is not a de Polignac number, because 23280145145 - 2⁸ = 23280144889 is a prime.

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, 40301 + ... + 219509.

It is an arithmetic number, because the mean of its divisors is an integer number (3492175665).

Almost surely, 2^23280145145 is an apocalyptic number.

It is an amenable number.

23280145145 is a deficient number, since it is larger than the sum of its proper divisors (4657260175).

23280145145 is a wasteful number, since it uses less digits than its factorization.

23280145145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205195.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 23280145145 in words is "twenty-three billion, two hundred eighty million, one hundred forty-five thousand, one hundred forty-five".