8132749 has 12 divisors (see below), whose sum is σ = 8753184. Its totient is φ = 7553984.

The previous prime is 8132743. The next prime is 8132759. The reversal of 8132749 is 9472318.

It is not a de Polignac number, because 8132749 - 2¹⁵ = 8099981 is a prime.

It is a super-2 number, since 2×8132749² = 132283212594002, which contains 22 as substring.

It is a Duffinian number.

8132749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8132743) 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 11 ways as a sum of consecutive naturals, for example, 30792 + ... + 31054.

It is an arithmetic number, because the mean of its divisors is an integer number (729432).

Almost surely, 2^8132749 is an apocalyptic number.

It is an amenable number.

8132749 is a deficient number, since it is larger than the sum of its proper divisors (620435).

8132749 is a wasteful number, since it uses less digits than its factorization.

8132749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 387 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 8132749 is about 2851.7975033301. The cubic root of 8132749 is about 201.1001786048.

The spelling of 8132749 in words is "eight million, one hundred thirty-two thousand, seven hundred forty-nine".