104137519 has 4 divisors (see below), whose sum is σ = 104262480. Its totient is φ = 104012560.

The previous prime is 104137513. The next prime is 104137541. The reversal of 104137519 is 915731401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104137519 - 2⁷ = 104137391 is a prime.

It is a super-2 number, since 2×104137519² = 21689245726950722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (104137513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61222 + ... + 62899.

It is an arithmetic number, because the mean of its divisors is an integer number (26065620).

Almost surely, 2^104137519 is an apocalyptic number.

104137519 is a deficient number, since it is larger than the sum of its proper divisors (124961).

104137519 is an equidigital number, since it uses as much as digits as its factorization.

104137519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124960.

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

The square root of 104137519 is about 10204.7792234815. The cubic root of 104137519 is about 470.4741239393.

The spelling of 104137519 in words is "one hundred four million, one hundred thirty-seven thousand, five hundred nineteen".