104137491 has 16 divisors (see below), whose sum is σ = 145426176. Its totient is φ = 66159456.

The previous prime is 104137489. The next prime is 104137513. The reversal of 104137491 is 194731401.

It is not a de Polignac number, because 104137491 - 2¹ = 104137489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104137391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16861 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (9089136).

Almost surely, 2^104137491 is an apocalyptic number.

104137491 is a deficient number, since it is larger than the sum of its proper divisors (41288685).

104137491 is a wasteful number, since it uses less digits than its factorization.

104137491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 104137491 is about 10204.7778515752. Note that the first 3 decimals coincide. The cubic root of 104137491 is about 470.4740817730.

Adding to 104137491 its reverse (194731401), we get a palindrome (298868892).

The spelling of 104137491 in words is "one hundred four million, one hundred thirty-seven thousand, four hundred ninety-one".