61130771 has 16 divisors (see below), whose sum is σ = 71181600. Its totient is φ = 52005888.

The previous prime is 61130749. The next prime is 61130779. The reversal of 61130771 is 17703116.

It is not a de Polignac number, because 61130771 - 2¹⁴ = 61114387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61130771.

It is not an unprimeable number, because it can be changed into a prime (61130779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5795 + ... + 12483.

It is an arithmetic number, because the mean of its divisors is an integer number (4448850).

Almost surely, 2^61130771 is an apocalyptic number.

61130771 is a deficient number, since it is larger than the sum of its proper divisors (10050829).

61130771 is a wasteful number, since it uses less digits than its factorization.

61130771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6758.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 61130771 is about 7818.6169493076. The cubic root of 61130771 is about 393.9308179011.

Adding to 61130771 its reverse (17703116), we get a palindrome (78833887).

The spelling of 61130771 in words is "sixty-one million, one hundred thirty thousand, seven hundred seventy-one".