23149203 has 16 divisors (see below), whose sum is σ = 38482176. Its totient is φ = 12025440.

The previous prime is 23149187. The next prime is 23149211. The reversal of 23149203 is 30294132.

It is not a de Polignac number, because 23149203 - 2⁴ = 23149187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23149283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49876 + ... + 50337.

It is an arithmetic number, because the mean of its divisors is an integer number (2405136).

Almost surely, 2^23149203 is an apocalyptic number.

23149203 is a deficient number, since it is larger than the sum of its proper divisors (15332973).

23149203 is a wasteful number, since it uses less digits than its factorization.

23149203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100234.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 23149203 is about 4811.3618654181. The cubic root of 23149203 is about 285.0003200981. Note that the first 3 decimals are identical.

Subtracting 23149203 from its reverse (30294132), we obtain a square (7144929 = 2673²).

The spelling of 23149203 in words is "twenty-three million, one hundred forty-nine thousand, two hundred three".