13257147 has 8 divisors (see below), whose sum is σ = 18285840. Its totient is φ = 8533280.

The previous prime is 13257143. The next prime is 13257151. The reversal of 13257147 is 74175231.

It is an interprime number because it is at equal distance from previous prime (13257143) and next prime (13257151).

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 13257147 - 2² = 13257143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13257143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76104 + ... + 76277.

It is an arithmetic number, because the mean of its divisors is an integer number (2285730).

Almost surely, 2^13257147 is an apocalyptic number.

13257147 is a deficient number, since it is larger than the sum of its proper divisors (5028693).

13257147 is a wasteful number, since it uses less digits than its factorization.

13257147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152413.

The product of its digits is 5880, while the sum is 30.

The square root of 13257147 is about 3641.0365282430. The cubic root of 13257147 is about 236.6737128983.

The spelling of 13257147 in words is "thirteen million, two hundred fifty-seven thousand, one hundred forty-seven".