8072149 has 4 divisors (see below), whose sum is σ = 8423136. Its totient is φ = 7721164.

The previous prime is 8072143. The next prime is 8072159. The reversal of 8072149 is 9412708.

8072149 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8072149 - 2⁵ = 8072117 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8072149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175459 + ... + 175504.

It is an arithmetic number, because the mean of its divisors is an integer number (2105784).

Almost surely, 2^8072149 is an apocalyptic number.

It is an amenable number.

8072149 is a deficient number, since it is larger than the sum of its proper divisors (350987).

8072149 is a wasteful number, since it uses less digits than its factorization.

8072149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350986.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 8072149 is about 2841.1527590047. The cubic root of 8072149 is about 200.5994432109.

The spelling of 8072149 in words is "eight million, seventy-two thousand, one hundred forty-nine".