61044281 has 2 divisors, whose sum is σ = 61044282. Its totient is φ = 61044280.

The previous prime is 61044253. The next prime is 61044293. The reversal of 61044281 is 18244016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47831056 + 13213225 = 6916^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 61044281 - 2²² = 56849977 is a prime.

It is a super-2 number, since 2×61044281² = 7452808485613922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61044281.

It is not a weakly prime, because it can be changed into another prime (61044481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30522140 + 30522141.

It is an arithmetic number, because the mean of its divisors is an integer number (30522141).

Almost surely, 2^61044281 is an apocalyptic number.

It is an amenable number.

61044281 is a deficient number, since it is larger than the sum of its proper divisors (1).

61044281 is an equidigital number, since it uses as much as digits as its factorization.

61044281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 61044281 is about 7813.0839621752. The cubic root of 61044281 is about 393.7449477474.

Adding to 61044281 its reverse (18244016), we get a palindrome (79288297).

The spelling of 61044281 in words is "sixty-one million, forty-four thousand, two hundred eighty-one".