8149013 has 4 divisors (see below), whose sum is σ = 8225280. Its totient is φ = 8072748.

The previous prime is 8149007. The next prime is 8149027. The reversal of 8149013 is 3109418.

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 8149013 - 2⁸ = 8148757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8149003) 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 3 ways as a sum of consecutive naturals, for example, 37973 + ... + 38186.

It is an arithmetic number, because the mean of its divisors is an integer number (2056320).

Almost surely, 2^8149013 is an apocalyptic number.

It is an amenable number.

8149013 is a deficient number, since it is larger than the sum of its proper divisors (76267).

8149013 is a wasteful number, since it uses less digits than its factorization.

8149013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76266.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 8149013 is about 2854.6476139797. The cubic root of 8149013 is about 201.2341437812.

It can be divided in two parts, 81 and 49013, that added together give a palindrome (49094).

The spelling of 8149013 in words is "eight million, one hundred forty-nine thousand, thirteen".