13133447 has 6 divisors (see below), whose sum is σ = 13447872. Its totient is φ = 12826212.

The previous prime is 13133423. The next prime is 13133467. The reversal of 13133447 is 74433131.

It is not a de Polignac number, because 13133447 - 2⁶ = 13133383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1703 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (2241312).

Almost surely, 2^13133447 is an apocalyptic number.

13133447 is a deficient number, since it is larger than the sum of its proper divisors (314425).

13133447 is an frugal number, since it uses more digits than its factorization.

13133447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189 (or 7146 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 13133447 is about 3624.0097957925. The cubic root of 13133447 is about 235.9352917969.

Adding to 13133447 its reverse (74433131), we get a palindrome (87566578).

It can be divided in two parts, 13133 and 447, that multiplied together give a triangular number (5870451 = T₃₄₂₆).

The spelling of 13133447 in words is "thirteen million, one hundred thirty-three thousand, four hundred forty-seven".