23216137 has 8 divisors (see below), whose sum is σ = 26712000. Its totient is φ = 19765104.

The previous prime is 23216107. The next prime is 23216143. The reversal of 23216137 is 73161232.

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 23216137 - 2¹⁹ = 22691849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23216107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10087 + ... + 12172.

It is an arithmetic number, because the mean of its divisors is an integer number (3339000).

Almost surely, 2^23216137 is an apocalyptic number.

It is an amenable number.

23216137 is a deficient number, since it is larger than the sum of its proper divisors (3495863).

23216137 is a wasteful number, since it uses less digits than its factorization.

23216137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22415.

The product of its digits is 1512, while the sum is 25.

The square root of 23216137 is about 4818.3126714650. The cubic root of 23216137 is about 285.2747407069.

Adding to 23216137 its reverse (73161232), we get a palindrome (96377369).

The spelling of 23216137 in words is "twenty-three million, two hundred sixteen thousand, one hundred thirty-seven".