61587103 has 2 divisors, whose sum is σ = 61587104. Its totient is φ = 61587102.

The previous prime is 61587101. The next prime is 61587109. The reversal of 61587103 is 30178516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61587103 - 2¹ = 61587101 is a prime.

Together with 61587101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61587101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30793551 + 30793552.

It is an arithmetic number, because the mean of its divisors is an integer number (30793552).

Almost surely, 2^61587103 is an apocalyptic number.

61587103 is a deficient number, since it is larger than the sum of its proper divisors (1).

61587103 is an equidigital number, since it uses as much as digits as its factorization.

61587103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 61587103 is about 7847.7450901517. The cubic root of 61587103 is about 394.9086003341.

The spelling of 61587103 in words is "sixty-one million, five hundred eighty-seven thousand, one hundred three".