23342155 has 4 divisors (see below), whose sum is σ = 28010592. Its totient is φ = 18673720.

The previous prime is 23342147. The next prime is 23342213. The reversal of 23342155 is 55124332.

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

It is not a de Polignac number, because 23342155 - 2³ = 23342147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2334211 + ... + 2334220.

It is an arithmetic number, because the mean of its divisors is an integer number (7002648).

Almost surely, 2^23342155 is an apocalyptic number.

23342155 is a deficient number, since it is larger than the sum of its proper divisors (4668437).

23342155 is an equidigital number, since it uses as much as digits as its factorization.

23342155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668436.

The product of its digits is 3600, while the sum is 25.

The square root of 23342155 is about 4831.3719583572. The cubic root of 23342155 is about 285.7899700094.

Adding to 23342155 its reverse (55124332), we get a palindrome (78466487).

It can be divided in two parts, 2334 and 2155, that added together give a square (4489 = 67²).

The spelling of 23342155 in words is "twenty-three million, three hundred forty-two thousand, one hundred fifty-five".