104509551 has 4 divisors (see below), whose sum is σ = 139346072. Its totient is φ = 69673032.

The previous prime is 104509549. The next prime is 104509553. The reversal of 104509551 is 155905401.

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

It is an interprime number because it is at equal distance from previous prime (104509549) and next prime (104509553).

It is not a de Polignac number, because 104509551 - 2¹ = 104509549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104509553) 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, 17418256 + ... + 17418261.

It is an arithmetic number, because the mean of its divisors is an integer number (34836518).

Almost surely, 2^104509551 is an apocalyptic number.

104509551 is a deficient number, since it is larger than the sum of its proper divisors (34836521).

104509551 is an equidigital number, since it uses as much as digits as its factorization.

104509551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34836520.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 104509551 is about 10222.9912941370. The cubic root of 104509551 is about 471.0337154295.

The spelling of 104509551 in words is "one hundred four million, five hundred nine thousand, five hundred fifty-one".