61075087 has 2 divisors, whose sum is σ = 61075088. Its totient is φ = 61075086.

The previous prime is 61075061. The next prime is 61075099. The reversal of 61075087 is 78057016.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61075087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61075037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30537543 + 30537544.

It is an arithmetic number, because the mean of its divisors is an integer number (30537544).

Almost surely, 2^61075087 is an apocalyptic number.

61075087 is a deficient number, since it is larger than the sum of its proper divisors (1).

61075087 is an equidigital number, since it uses as much as digits as its factorization.

61075087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 61075087 is about 7815.0551501573. The cubic root of 61075087 is about 393.8111710791.

The spelling of 61075087 in words is "sixty-one million, seventy-five thousand, eighty-seven".