8136261 has 16 divisors (see below), whose sum is σ = 13776000. Its totient is φ = 4649184.

The previous prime is 8136259. The next prime is 8136281. The reversal of 8136261 is 1626318.

It is not a de Polignac number, because 8136261 - 2¹ = 8136259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

8136261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8136221) 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 15 ways as a sum of consecutive naturals, for example, 21336 + ... + 21713.

It is an arithmetic number, because the mean of its divisors is an integer number (861000).

Almost surely, 2^8136261 is an apocalyptic number.

It is an amenable number.

8136261 is a deficient number, since it is larger than the sum of its proper divisors (5639739).

8136261 is a wasteful number, since it uses less digits than its factorization.

8136261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43065 (or 43059 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 8136261 is about 2852.4131888631. The cubic root of 8136261 is about 201.1291217575.

The spelling of 8136261 in words is "eight million, one hundred thirty-six thousand, two hundred sixty-one".