23513401 has 4 divisors (see below), whose sum is σ = 23533092. Its totient is φ = 23493712.

The previous prime is 23513387. The next prime is 23513417. The reversal of 23513401 is 10431532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10725625 + 12787776 = 3275^2 + 3576^2 .

It is a cyclic number.

It is not a de Polignac number, because 23513401 - 2¹¹ = 23511353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23513471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7930 + ... + 10483.

It is an arithmetic number, because the mean of its divisors is an integer number (5883273).

Almost surely, 2^23513401 is an apocalyptic number.

It is an amenable number.

23513401 is a deficient number, since it is larger than the sum of its proper divisors (19691).

23513401 is a wasteful number, since it uses less digits than its factorization.

23513401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19690.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23513401 is about 4849.0618680318. The cubic root of 23513401 is about 286.4871520462.

Adding to 23513401 its reverse (10431532), we get a palindrome (33944933).

The spelling of 23513401 in words is "twenty-three million, five hundred thirteen thousand, four hundred one".