61871059 has 4 divisors (see below), whose sum is σ = 61943616. Its totient is φ = 61798504.

The previous prime is 61871057. The next prime is 61871093. The reversal of 61871059 is 95017816.

61871059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61871059 - 2¹ = 61871057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61871057) 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 in 3 ways as a sum of consecutive naturals, for example, 34984 + ... + 36709.

It is an arithmetic number, because the mean of its divisors is an integer number (15485904).

Almost surely, 2^61871059 is an apocalyptic number.

61871059 is a deficient number, since it is larger than the sum of its proper divisors (72557).

61871059 is an equidigital number, since it uses as much as digits as its factorization.

61871059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72556.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 61871059 is about 7865.8158508829. The cubic root of 61871059 is about 395.5145971556.

The spelling of 61871059 in words is "sixty-one million, eight hundred seventy-one thousand, fifty-nine".