104140451 has 4 divisors (see below), whose sum is σ = 106680504. Its totient is φ = 101600400.

The previous prime is 104140441. The next prime is 104140489. The reversal of 104140451 is 154041401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104140451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104140411) 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, 1269965 + ... + 1270046.

It is an arithmetic number, because the mean of its divisors is an integer number (26670126).

Almost surely, 2^104140451 is an apocalyptic number.

104140451 is a deficient number, since it is larger than the sum of its proper divisors (2540053).

104140451 is an equidigital number, since it uses as much as digits as its factorization.

104140451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540052.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 104140451 is about 10204.9228806493. The cubic root of 104140451 is about 470.4785393098.

Adding to 104140451 its reverse (154041401), we get a palindrome (258181852).

The spelling of 104140451 in words is "one hundred four million, one hundred forty thousand, four hundred fifty-one".