61097587 has 2 divisors, whose sum is σ = 61097588. Its totient is φ = 61097586.

The previous prime is 61097567. The next prime is 61097611. The reversal of 61097587 is 78579016.

61097587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61097587 - 2¹¹ = 61095539 is a prime.

It is not a weakly prime, because it can be changed into another prime (61097537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30548793 + 30548794.

It is an arithmetic number, because the mean of its divisors is an integer number (30548794).

Almost surely, 2^61097587 is an apocalyptic number.

61097587 is a deficient number, since it is larger than the sum of its proper divisors (1).

61097587 is an equidigital number, since it uses as much as digits as its factorization.

61097587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 61097587 is about 7816.4945467901. The cubic root of 61097587 is about 393.8595250202.

The spelling of 61097587 in words is "sixty-one million, ninety-seven thousand, five hundred eighty-seven".