23063155 has 4 divisors (see below), whose sum is σ = 27675792. Its totient is φ = 18450520.

The previous prime is 23063153. The next prime is 23063171. The reversal of 23063155 is 55136032.

It is a happy number.

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

It is not a de Polignac number, because 23063155 - 2¹ = 23063153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23063153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306311 + ... + 2306320.

It is an arithmetic number, because the mean of its divisors is an integer number (6918948).

Almost surely, 2^23063155 is an apocalyptic number.

23063155 is a deficient number, since it is larger than the sum of its proper divisors (4612637).

23063155 is an equidigital number, since it uses as much as digits as its factorization.

23063155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612636.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 23063155 is about 4802.4113734665. The cubic root of 23063155 is about 284.6467563610.

Adding to 23063155 its reverse (55136032), we get a palindrome (78199187).

The spelling of 23063155 in words is "twenty-three million, sixty-three thousand, one hundred fifty-five".