23853149 has 4 divisors (see below), whose sum is σ = 23941440. Its totient is φ = 23764860.

The previous prime is 23853143. The next prime is 23853163. The reversal of 23853149 is 94135832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23853149 - 2⁴ = 23853133 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 (23853143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43739 + ... + 44280.

It is an arithmetic number, because the mean of its divisors is an integer number (5985360).

Almost surely, 2^23853149 is an apocalyptic number.

It is an amenable number.

23853149 is a deficient number, since it is larger than the sum of its proper divisors (88291).

23853149 is an equidigital number, since it uses as much as digits as its factorization.

23853149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88290.

The product of its digits is 25920, while the sum is 35.

The square root of 23853149 is about 4883.9685707424. The cubic root of 23853149 is about 287.8603883831.

The spelling of 23853149 in words is "twenty-three million, eight hundred fifty-three thousand, one hundred forty-nine".