23481001 has 2 divisors, whose sum is σ = 23481002. Its totient is φ = 23481000.

The previous prime is 23480993. The next prime is 23481019. The reversal of 23481001 is 10018432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20241001 + 3240000 = 4499^2 + 1800^2 .

It is a cyclic number.

It is not a de Polignac number, because 23481001 - 2³ = 23480993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23481001.

It is not a weakly prime, because it can be changed into another prime (23481071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11740500 + 11740501.

It is an arithmetic number, because the mean of its divisors is an integer number (11740501).

Almost surely, 2^23481001 is an apocalyptic number.

It is an amenable number.

23481001 is a deficient number, since it is larger than the sum of its proper divisors (1).

23481001 is an equidigital number, since it uses as much as digits as its factorization.

23481001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 23481001 is about 4845.7198639624. The cubic root of 23481001 is about 286.3555044180.

Adding to 23481001 its reverse (10018432), we get a palindrome (33499433).

The spelling of 23481001 in words is "twenty-three million, four hundred eighty-one thousand, one".