23126401 has 4 divisors (see below), whose sum is σ = 24343600. Its totient is φ = 21909204.

The previous prime is 23126399. The next prime is 23126413. The reversal of 23126401 is 10462132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23126401 - 2¹ = 23126399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1217179 = 23126401 / (2 + 3 + 1 + 2 + 6 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23126461) 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, 608571 + ... + 608608.

It is an arithmetic number, because the mean of its divisors is an integer number (6085900).

Almost surely, 2^23126401 is an apocalyptic number.

It is an amenable number.

23126401 is a deficient number, since it is larger than the sum of its proper divisors (1217199).

23126401 is a wasteful number, since it uses less digits than its factorization.

23126401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217198.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 23126401 is about 4808.9916822552. The cubic root of 23126401 is about 284.9067141085.

Adding to 23126401 its reverse (10462132), we get a palindrome (33588533).

The spelling of 23126401 in words is "twenty-three million, one hundred twenty-six thousand, four hundred one".