23351641 has 8 divisors (see below), whose sum is σ = 24614280. Its totient is φ = 22119552.

The previous prime is 23351639. The next prime is 23351651. The reversal of 23351641 is 14615332.

It can be written as a sum of positive squares in 4 ways, for example, as 13111641 + 10240000 = 3621^2 + 3200^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23351641 - 2¹ = 23351639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23351611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6060 + ... + 9133.

It is an arithmetic number, because the mean of its divisors is an integer number (3076785).

Almost surely, 2^23351641 is an apocalyptic number.

It is an amenable number.

23351641 is a deficient number, since it is larger than the sum of its proper divisors (1262639).

23351641 is a wasteful number, since it uses less digits than its factorization.

23351641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15275.

The product of its digits is 2160, while the sum is 25.

The square root of 23351641 is about 4832.3535673624. The cubic root of 23351641 is about 285.8286787532.

Adding to 23351641 its reverse (14615332), we get a palindrome (37966973).

The spelling of 23351641 in words is "twenty-three million, three hundred fifty-one thousand, six hundred forty-one".