13132779 has 8 divisors (see below), whose sum is σ = 19102272. Its totient is φ = 7959240.

The previous prime is 13132771. The next prime is 13132783. The reversal of 13132779 is 97723131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13132779 - 2³ = 13132771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 397963 = 13132779 / (1 + 3 + 1 + 3 + 2 + 7 + 7 + 9).

It is not an unprimeable number, because it can be changed into a prime (13132771) 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, 198949 + ... + 199014.

It is an arithmetic number, because the mean of its divisors is an integer number (2387784).

Almost surely, 2^13132779 is an apocalyptic number.

13132779 is a deficient number, since it is larger than the sum of its proper divisors (5969493).

13132779 is a wasteful number, since it uses less digits than its factorization.

13132779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397977.

The product of its digits is 7938, while the sum is 33.

The square root of 13132779 is about 3623.9176315143. The cubic root of 13132779 is about 235.9312916426.

The spelling of 13132779 in words is "thirteen million, one hundred thirty-two thousand, seven hundred seventy-nine".