61127261 has 8 divisors (see below), whose sum is σ = 68691840. Its totient is φ = 53971632.

The previous prime is 61127243. The next prime is 61127323. The reversal of 61127261 is 16272116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-61127261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61127261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61127201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101921 + ... + 102518.

It is an arithmetic number, because the mean of its divisors is an integer number (8586480).

Almost surely, 2^61127261 is an apocalyptic number.

It is an amenable number.

61127261 is a deficient number, since it is larger than the sum of its proper divisors (7564579).

61127261 is a wasteful number, since it uses less digits than its factorization.

61127261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204475.

The product of its digits is 1008, while the sum is 26.

The square root of 61127261 is about 7818.3924818341. The cubic root of 61127261 is about 393.9232781978.

Adding to 61127261 its reverse (16272116), we get a palindrome (77399377).

It can be divided in two parts, 611 and 27261, that added together give a palindrome (27872).

The spelling of 61127261 in words is "sixty-one million, one hundred twenty-seven thousand, two hundred sixty-one".