8101949 has 4 divisors (see below), whose sum is σ = 8107680. Its totient is φ = 8096220.

The previous prime is 8101913. The next prime is 8101963. The reversal of 8101949 is 9491018.

8101949 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8101949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8101909) 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 3 ways as a sum of consecutive naturals, for example, 944 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (2026920).

Almost surely, 2^8101949 is an apocalyptic number.

It is an amenable number.

8101949 is a deficient number, since it is larger than the sum of its proper divisors (5731).

8101949 is a wasteful number, since it uses less digits than its factorization.

8101949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 8101949 is about 2846.3922779547. The cubic root of 8101949 is about 200.8459914467.

The spelling of 8101949 in words is "eight million, one hundred one thousand, nine hundred forty-nine".