61227261 has 12 divisors (see below), whose sum is σ = 88553088. Its totient is φ = 40765704.

The previous prime is 61227247. The next prime is 61227269. The reversal of 61227261 is 16272216.

61227261 is a `hidden beast` number, since 612 + 27 + 26 + 1 = 666.

It is not a de Polignac number, because 61227261 - 2¹⁰ = 61226237 is a prime.

It is a super-3 number, since 3×61227261³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61227269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3826 + ... + 11708.

It is an arithmetic number, because the mean of its divisors is an integer number (7379424).

Almost surely, 2^61227261 is an apocalyptic number.

It is an amenable number.

61227261 is a deficient number, since it is larger than the sum of its proper divisors (27325827).

61227261 is a wasteful number, since it uses less digits than its factorization.

61227261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8752 (or 8749 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 61227261 is about 7824.7850449709. The cubic root of 61227261 is about 394.1379716402.

Adding to 61227261 its reverse (16272216), we get a palindrome (77499477).

The spelling of 61227261 in words is "sixty-one million, two hundred twenty-seven thousand, two hundred sixty-one".