23520147 has 12 divisors (see below), whose sum is σ = 36480456. Its totient is φ = 13440000.

The previous prime is 23520137. The next prime is 23520169. The reversal of 23520147 is 74102532.

It is not a de Polignac number, because 23520147 - 2⁶ = 23520083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23520137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79854 + ... + 80147.

It is an arithmetic number, because the mean of its divisors is an integer number (3040038).

Almost surely, 2^23520147 is an apocalyptic number.

23520147 is a deficient number, since it is larger than the sum of its proper divisors (12960309).

23520147 is a wasteful number, since it uses less digits than its factorization.

23520147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160018 (or 160011 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 23520147 is about 4849.7574166137. The cubic root of 23520147 is about 286.5145471691.

Adding to 23520147 its reverse (74102532), we get a palindrome (97622679).

The spelling of 23520147 in words is "twenty-three million, five hundred twenty thousand, one hundred forty-seven".