13023147 has 4 divisors (see below), whose sum is σ = 17364200. Its totient is φ = 8682096.

The previous prime is 13023133. The next prime is 13023167. The reversal of 13023147 is 74132031.

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

It is not a de Polignac number, because 13023147 - 2¹² = 13019051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13023167) 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, 2170522 + ... + 2170527.

It is an arithmetic number, because the mean of its divisors is an integer number (4341050).

Almost surely, 2^13023147 is an apocalyptic number.

13023147 is a deficient number, since it is larger than the sum of its proper divisors (4341053).

13023147 is an equidigital number, since it uses as much as digits as its factorization.

13023147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341052.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13023147 is about 3608.7597592525. The cubic root of 13023147 is about 235.2729407546.

Adding to 13023147 its reverse (74132031), we get a palindrome (87155178).

The spelling of 13023147 in words is "thirteen million, twenty-three thousand, one hundred forty-seven".