23769149 has 4 divisors (see below), whose sum is σ = 23915136. Its totient is φ = 23623164.

The previous prime is 23769131. The next prime is 23769191. The reversal of 23769149 is 94196732.

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 23769149 - 2¹⁶ = 23703613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23765149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 72749 + ... + 73074.

It is an arithmetic number, because the mean of its divisors is an integer number (5978784).

Almost surely, 2^23769149 is an apocalyptic number.

It is an amenable number.

23769149 is a deficient number, since it is larger than the sum of its proper divisors (145987).

23769149 is a wasteful number, since it uses less digits than its factorization.

23769149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145986.

The product of its digits is 81648, while the sum is 41.

The square root of 23769149 is about 4875.3614224999. The cubic root of 23769149 is about 287.5220862680.

The spelling of 23769149 in words is "twenty-three million, seven hundred sixty-nine thousand, one hundred forty-nine".