23790145 has 16 divisors (see below), whose sum is σ = 29123280. Its totient is φ = 18653184.

The previous prime is 23790133. The next prime is 23790167. The reversal of 23790145 is 54109732.

It can be written as a sum of positive squares in 8 ways, for example, as 6517809 + 17272336 = 2553^2 + 4156^2 .

It is a cyclic number.

It is not a de Polignac number, because 23790145 - 2⁷ = 23790017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85747 + ... + 86023.

It is an arithmetic number, because the mean of its divisors is an integer number (1820205).

Almost surely, 2^23790145 is an apocalyptic number.

It is an amenable number.

23790145 is a deficient number, since it is larger than the sum of its proper divisors (5333135).

23790145 is a wasteful number, since it uses less digits than its factorization.

23790145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 23790145 is about 4877.5142234544. The cubic root of 23790145 is about 287.6067203048.

Adding to 23790145 its reverse (54109732), we get a palindrome (77899877).

The spelling of 23790145 in words is "twenty-three million, seven hundred ninety thousand, one hundred forty-five".