8141391 has 10 divisors (see below), whose sum is σ = 12161952. Its totient is φ = 5427540.

The previous prime is 8141377. The next prime is 8141401. The reversal of 8141391 is 1931418.

It is not a de Polignac number, because 8141391 - 2⁶ = 8141327 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8141891) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50175 + ... + 50336.

Almost surely, 2^8141391 is an apocalyptic number.

8141391 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8141391 is a deficient number, since it is larger than the sum of its proper divisors (4020561).

8141391 is a wasteful number, since it uses less digits than its factorization.

8141391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100523 (or 100514 counting only the distinct ones).

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

The square root of 8141391 is about 2853.3122857479. The cubic root of 8141391 is about 201.1713842340.

Adding to 8141391 its sum of digits (27), we get a palindrome (8141418).

The spelling of 8141391 in words is "eight million, one hundred forty-one thousand, three hundred ninety-one".