23242155 has 8 divisors (see below), whose sum is σ = 37187472. Its totient is φ = 12395808.

The previous prime is 23242129. The next prime is 23242169. The reversal of 23242155 is 55124232.

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

It is not a de Polignac number, because 23242155 - 2⁷ = 23242027 is a prime.

It is an unprimeable number.

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, 774724 + ... + 774753.

It is an arithmetic number, because the mean of its divisors is an integer number (4648434).

Almost surely, 2^23242155 is an apocalyptic number.

23242155 is a deficient number, since it is larger than the sum of its proper divisors (13945317).

23242155 is a wasteful number, since it uses less digits than its factorization.

23242155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549485.

The product of its digits is 2400, while the sum is 24.

The square root of 23242155 is about 4821.0118232587. The cubic root of 23242155 is about 285.3812687259.

Adding to 23242155 its reverse (55124232), we get a palindrome (78366387).

The spelling of 23242155 in words is "twenty-three million, two hundred forty-two thousand, one hundred fifty-five".