23148649 has 4 divisors (see below), whose sum is σ = 24155136. Its totient is φ = 22142164.

The previous prime is 23148607. The next prime is 23148703. The reversal of 23148649 is 94684132.

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 23148649 - 2¹¹ = 23146601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23148049) by changing a digit.

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, 503209 + ... + 503254.

It is an arithmetic number, because the mean of its divisors is an integer number (6038784).

Almost surely, 2^23148649 is an apocalyptic number.

It is an amenable number.

23148649 is a deficient number, since it is larger than the sum of its proper divisors (1006487).

23148649 is a wasteful number, since it uses less digits than its factorization.

23148649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006486.

The product of its digits is 41472, while the sum is 37.

The square root of 23148649 is about 4811.3042930166. The cubic root of 23148649 is about 284.9980465650.

The spelling of 23148649 in words is "twenty-three million, one hundred forty-eight thousand, six hundred forty-nine".