23120605 has 8 divisors (see below), whose sum is σ = 27922392. Its totient is φ = 18378048.

The previous prime is 23120599. The next prime is 23120609. The reversal of 23120605 is 50602132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 974169 + 22146436 = 987^2 + 4706^2 .

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 23120605 - 2¹⁹ = 22596317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13942 + ... + 15511.

It is an arithmetic number, because the mean of its divisors is an integer number (3490299).

Almost surely, 2^23120605 is an apocalyptic number.

It is an amenable number.

23120605 is a deficient number, since it is larger than the sum of its proper divisors (4801787).

23120605 is a wasteful number, since it uses less digits than its factorization.

23120605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29615.

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

The square root of 23120605 is about 4808.3890233632. The cubic root of 23120605 is about 284.8829107608.

Adding to 23120605 its reverse (50602132), we get a palindrome (73722737).

It can be divided in two parts, 23120 and 605, that multiplied together give a square (13987600 = 3740²).

The spelling of 23120605 in words is "twenty-three million, one hundred twenty thousand, six hundred five".