104511551 has 2 divisors, whose sum is σ = 104511552. Its totient is φ = 104511550.

The previous prime is 104511541. The next prime is 104511557. The reversal of 104511551 is 155115401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104511551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104511557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52255775 + 52255776.

It is an arithmetic number, because the mean of its divisors is an integer number (52255776).

Almost surely, 2^104511551 is an apocalyptic number.

104511551 is a deficient number, since it is larger than the sum of its proper divisors (1).

104511551 is an equidigital number, since it uses as much as digits as its factorization.

104511551 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 23.

The square root of 104511551 is about 10223.0891123965. The cubic root of 104511551 is about 471.0367201355.

Adding to 104511551 its reverse (155115401), we get a palindrome (259626952).

The spelling of 104511551 in words is "one hundred four million, five hundred eleven thousand, five hundred fifty-one".