104187539 has 4 divisors (see below), whose sum is σ = 108717456. Its totient is φ = 99657624.

The previous prime is 104187533. The next prime is 104187547. The reversal of 104187539 is 935781401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935781401 = 3529 ⋅265169.

It is a cyclic number.

It is not a de Polignac number, because 104187539 - 2¹⁶ = 104122003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104187533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264924 + ... + 2264969.

It is an arithmetic number, because the mean of its divisors is an integer number (27179364).

Almost surely, 2^104187539 is an apocalyptic number.

104187539 is a deficient number, since it is larger than the sum of its proper divisors (4529917).

104187539 is an equidigital number, since it uses as much as digits as its factorization.

104187539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529916.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 104187539 is about 10207.2297417076. The cubic root of 104187539 is about 470.5494389300.

The spelling of 104187539 in words is "one hundred four million, one hundred eighty-seven thousand, five hundred thirty-nine".