61127613 has 24 divisors (see below), whose sum is σ = 89849760. Its totient is φ = 40042080.

The previous prime is 61127609. The next prime is 61127623. The reversal of 61127613 is 31672116.

It is not a de Polignac number, because 61127613 - 2² = 61127609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61127623) 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 in 23 ways as a sum of consecutive naturals, for example, 163695 + ... + 164067.

It is an arithmetic number, because the mean of its divisors is an integer number (3743740).

Almost surely, 2^61127613 is an apocalyptic number.

It is an amenable number.

61127613 is a deficient number, since it is larger than the sum of its proper divisors (28722147).

61127613 is a wasteful number, since it uses less digits than its factorization.

61127613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 646 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 61127613 is about 7818.4149928230. The cubic root of 61127613 is about 393.9240343292.

Adding to 61127613 its reverse (31672116), we get a palindrome (92799729).

It can be divided in two parts, 611 and 27613, that added together give a square (28224 = 168²).

The spelling of 61127613 in words is "sixty-one million, one hundred twenty-seven thousand, six hundred thirteen".