104513861 has 2 divisors, whose sum is σ = 104513862. Its totient is φ = 104513860.

The previous prime is 104513837. The next prime is 104513869. The reversal of 104513861 is 168315401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99700225 + 4813636 = 9985^2 + 2194^2 .

It is an emirp because it is prime and its reverse (168315401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104513861 is a prime.

It is a super-2 number, since 2×104513861² = 21846294282254642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104513869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52256930 + 52256931.

It is an arithmetic number, because the mean of its divisors is an integer number (52256931).

Almost surely, 2^104513861 is an apocalyptic number.

It is an amenable number.

104513861 is a deficient number, since it is larger than the sum of its proper divisors (1).

104513861 is an equidigital number, since it uses as much as digits as its factorization.

104513861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 104513861 is about 10223.2020913215. The cubic root of 104513861 is about 471.0401905232.

The spelling of 104513861 in words is "one hundred four million, five hundred thirteen thousand, eight hundred sixty-one".