13749134 has 12 divisors (see below), whose sum is σ = 23593752. Its totient is φ = 5886540.

The previous prime is 13749133. The next prime is 13749149. The reversal of 13749134 is 43194731.

It is a self number, because there is not a number n which added to its sum of digits gives 13749134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749133) 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 5 ways as a sum of consecutive naturals, for example, 13379 + ... + 14369.

It is an arithmetic number, because the mean of its divisors is an integer number (1966146).

Almost surely, 2^13749134 is an apocalyptic number.

13749134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13749134 is a deficient number, since it is larger than the sum of its proper divisors (9844618).

13749134 is an frugal number, since it uses more digits than its factorization.

13749134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991 (or 1000 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 13749134 is about 3707.9824702930. The cubic root of 13749134 is about 239.5659632086.

The spelling of 13749134 in words is "thirteen million, seven hundred forty-nine thousand, one hundred thirty-four".