23145701 has 4 divisors (see below), whose sum is σ = 23157804. Its totient is φ = 23133600.

The previous prime is 23145697. The next prime is 23145709. The reversal of 23145701 is 10754132.

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 can be written as a sum of positive squares in 2 ways, for example, as 201601 + 22944100 = 449^2 + 4790^2 .

It is a cyclic number.

It is not a de Polignac number, because 23145701 - 2² = 23145697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2480 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (5789451).

Almost surely, 2^23145701 is an apocalyptic number.

It is an amenable number.

23145701 is a deficient number, since it is larger than the sum of its proper divisors (12103).

23145701 is an equidigital number, since it uses as much as digits as its factorization.

23145701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12102.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 23145701 is about 4810.9979214296. The cubic root of 23145701 is about 284.9859478041.

Adding to 23145701 its reverse (10754132), we get a palindrome (33899833).

The spelling of 23145701 in words is "twenty-three million, one hundred forty-five thousand, seven hundred one".