8190261 has 16 divisors (see below), whose sum is σ = 12214720. Its totient is φ = 5423760.

The previous prime is 8190257. The next prime is 8190331. The reversal of 8190261 is 1620918.

It is not a de Polignac number, because 8190261 - 2² = 8190257 is a prime.

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

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8190211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3471 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (763420).

Almost surely, 2^8190261 is an apocalyptic number.

It is an amenable number.

8190261 is a deficient number, since it is larger than the sum of its proper divisors (4024459).

8190261 is a wasteful number, since it uses less digits than its factorization.

8190261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 8190261 is about 2861.8632042779. The cubic root of 8190261 is about 201.5731026332.

The spelling of 8190261 in words is "eight million, one hundred ninety thousand, two hundred sixty-one".