23203145 has 8 divisors (see below), whose sum is σ = 31821504. Its totient is φ = 15910704.

The previous prime is 23203127. The next prime is 23203151. The reversal of 23203145 is 54130232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23203145 - 2⁸ = 23202889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331439 + ... + 331508.

It is an arithmetic number, because the mean of its divisors is an integer number (3977688).

Almost surely, 2^23203145 is an apocalyptic number.

It is an amenable number.

23203145 is a deficient number, since it is larger than the sum of its proper divisors (8618359).

23203145 is an equidigital number, since it uses as much as digits as its factorization.

23203145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662959.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23203145 is about 4816.9642929962. The cubic root of 23203145 is about 285.2215165062.

Adding to 23203145 its reverse (54130232), we get a palindrome (77333377).

The spelling of 23203145 in words is "twenty-three million, two hundred three thousand, one hundred forty-five".