8138461 has 8 divisors (see below), whose sum is σ = 8895744. Its totient is φ = 7412160.

The previous prime is 8138443. The next prime is 8138467. The reversal of 8138461 is 1648318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8138461 - 2¹⁵ = 8105693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7195 + ... + 8248.

It is an arithmetic number, because the mean of its divisors is an integer number (1111968).

Almost surely, 2^8138461 is an apocalyptic number.

It is an amenable number.

8138461 is a deficient number, since it is larger than the sum of its proper divisors (757283).

8138461 is a wasteful number, since it uses less digits than its factorization.

8138461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15491.

The product of its digits is 4608, while the sum is 31.

The square root of 8138461 is about 2852.7988011775. The cubic root of 8138461 is about 201.1472481914.

The spelling of 8138461 in words is "eight million, one hundred thirty-eight thousand, four hundred sixty-one".