104015551 has 2 divisors, whose sum is σ = 104015552. Its totient is φ = 104015550.

The previous prime is 104015543. The next prime is 104015563. The reversal of 104015551 is 155510401.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (155510401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104015551 - 2³ = 104015543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104015501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52007775 + 52007776.

It is an arithmetic number, because the mean of its divisors is an integer number (52007776).

Almost surely, 2^104015551 is an apocalyptic number.

104015551 is a deficient number, since it is larger than the sum of its proper divisors (1).

104015551 is an equidigital number, since it uses as much as digits as its factorization.

104015551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 104015551 is about 10198.8014491900. The cubic root of 104015551 is about 470.2903758668.

Adding to 104015551 its reverse (155510401), we get a palindrome (259525952).

The spelling of 104015551 in words is "one hundred four million, fifteen thousand, five hundred fifty-one".