23149603 has 4 divisors (see below), whose sum is σ = 23161720. Its totient is φ = 23137488.

The previous prime is 23149589. The next prime is 23149663. The reversal of 23149603 is 30694132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23149603 - 2⁵ = 23149571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23149663) 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, 2493 + ... + 7246.

It is an arithmetic number, because the mean of its divisors is an integer number (5790430).

Almost surely, 2^23149603 is an apocalyptic number.

23149603 is a deficient number, since it is larger than the sum of its proper divisors (12117).

23149603 is an equidigital number, since it uses as much as digits as its factorization.

23149603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12116.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23149603 is about 4811.4034335109. The cubic root of 23149603 is about 285.0019616157.

The spelling of 23149603 in words is "twenty-three million, one hundred forty-nine thousand, six hundred three".