23154245 has 4 divisors (see below), whose sum is σ = 27785100. Its totient is φ = 18523392.

The previous prime is 23154239. The next prime is 23154251. The reversal of 23154245 is 54245132.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (23154239) and next prime (23154251).

It can be written as a sum of positive squares in 2 ways, for example, as 2515396 + 20638849 = 1586^2 + 4543^2 .

It is a cyclic number.

It is not a de Polignac number, because 23154245 - 2⁶ = 23154181 is a prime.

It is a super-2 number, since 2×23154245² = 1072238123040050, which contains 22 as substring.

It is a congruent 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, 2315420 + ... + 2315429.

It is an arithmetic number, because the mean of its divisors is an integer number (6946275).

Almost surely, 2^23154245 is an apocalyptic number.

It is an amenable number.

23154245 is a deficient number, since it is larger than the sum of its proper divisors (4630855).

23154245 is an equidigital number, since it uses as much as digits as its factorization.

23154245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630854.

The product of its digits is 4800, while the sum is 26.

The square root of 23154245 is about 4811.8858049625. The cubic root of 23154245 is about 285.0210100444.

Adding to 23154245 its reverse (54245132), we get a palindrome (77399377).

The spelling of 23154245 in words is "twenty-three million, one hundred fifty-four thousand, two hundred forty-five".