61636103 has 2 divisors, whose sum is σ = 61636104. Its totient is φ = 61636102.

The previous prime is 61636087. The next prime is 61636109. The reversal of 61636103 is 30163616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61636103 - 2⁴ = 61636087 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61636109) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30818051 + 30818052.

It is an arithmetic number, because the mean of its divisors is an integer number (30818052).

Almost surely, 2^61636103 is an apocalyptic number.

61636103 is a deficient number, since it is larger than the sum of its proper divisors (1).

61636103 is an equidigital number, since it uses as much as digits as its factorization.

61636103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 61636103 is about 7850.8663853106. The cubic root of 61636103 is about 395.0133051118.

Adding to 61636103 its reverse (30163616), we get a palindrome (91799719).

The spelling of 61636103 in words is "sixty-one million, six hundred thirty-six thousand, one hundred three".