104137591 has 2 divisors, whose sum is σ = 104137592. Its totient is φ = 104137590.

The previous prime is 104137567. The next prime is 104137601. The reversal of 104137591 is 195731401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104137591 - 2¹¹ = 104135543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104137541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52068795 + 52068796.

It is an arithmetic number, because the mean of its divisors is an integer number (52068796).

Almost surely, 2^104137591 is an apocalyptic number.

104137591 is a deficient number, since it is larger than the sum of its proper divisors (1).

104137591 is an equidigital number, since it uses as much as digits as its factorization.

104137591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 104137591 is about 10204.7827512397. The cubic root of 104137591 is about 470.4742323668.

Adding to 104137591 its reverse (195731401), we get a palindrome (299868992).

The spelling of 104137591 in words is "one hundred four million, one hundred thirty-seven thousand, five hundred ninety-one".