13101947 has 4 divisors (see below), whose sum is σ = 13110216. Its totient is φ = 13093680.

The previous prime is 13101943. The next prime is 13101983. The reversal of 13101947 is 74910131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74910131 = 6719 ⋅11149.

It is a cyclic number.

It is not a de Polignac number, because 13101947 - 2² = 13101943 is a prime.

It is a super-2 number, since 2×13101947² = 343322030381618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13101943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (3277554).

Almost surely, 2^13101947 is an apocalyptic number.

13101947 is a deficient number, since it is larger than the sum of its proper divisors (8269).

13101947 is an equidigital number, since it uses as much as digits as its factorization.

13101947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8268.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 13101947 is about 3619.6611719883. The cubic root of 13101947 is about 235.7465139545.

The spelling of 13101947 in words is "thirteen million, one hundred one thousand, nine hundred forty-seven".