23201506 has 4 divisors (see below), whose sum is σ = 34802262. Its totient is φ = 11600752.

The previous prime is 23201501. The next prime is 23201509. The reversal of 23201506 is 60510232.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 15960025 + 7241481 = 3995^2 + 2691^2 .

It is not an unprimeable number, because it can be changed into a prime (23201501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5800375 + ... + 5800378.

Almost surely, 2^23201506 is an apocalyptic number.

23201506 is a deficient number, since it is larger than the sum of its proper divisors (11600756).

23201506 is a wasteful number, since it uses less digits than its factorization.

23201506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11600755.

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

The square root of 23201506 is about 4816.7941620958. The cubic root of 23201506 is about 285.2148006196.

Adding to 23201506 its reverse (60510232), we get a palindrome (83711738).

The spelling of 23201506 in words is "twenty-three million, two hundred one thousand, five hundred six".