23103745 has 24 divisors (see below), whose sum is σ = 32491368. Its totient is φ = 15724800.

The previous prime is 23103737. The next prime is 23103757. The reversal of 23103745 is 54730132.

It can be written as a sum of positive squares in 4 ways, for example, as 379456 + 22724289 = 616^2 + 4767^2 .

It is not a de Polignac number, because 23103745 - 2³ = 23103737 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44085 + ... + 44605.

It is an arithmetic number, because the mean of its divisors is an integer number (1353807).

Almost surely, 2^23103745 is an apocalyptic number.

It is an amenable number.

23103745 is a deficient number, since it is larger than the sum of its proper divisors (9387623).

23103745 is a wasteful number, since it uses less digits than its factorization.

23103745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 23103745 is about 4806.6355176984. The cubic root of 23103745 is about 284.8136465142.

Adding to 23103745 its reverse (54730132), we get a palindrome (77833877).

The spelling of 23103745 in words is "twenty-three million, one hundred three thousand, seven hundred forty-five".