61481033 has 2 divisors, whose sum is σ = 61481034. Its totient is φ = 61481032.

The previous prime is 61481003. The next prime is 61481041. The reversal of 61481033 is 33018416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46403344 + 15077689 = 6812^2 + 3883^2 .

It is a cyclic number.

It is not a de Polignac number, because 61481033 - 2⁸ = 61480777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61480993 and 61481011.

It is not a weakly prime, because it can be changed into another prime (61481003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30740516 + 30740517.

It is an arithmetic number, because the mean of its divisors is an integer number (30740517).

Almost surely, 2^61481033 is an apocalyptic number.

It is an amenable number.

61481033 is a deficient number, since it is larger than the sum of its proper divisors (1).

61481033 is an equidigital number, since it uses as much as digits as its factorization.

61481033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 61481033 is about 7840.9841856747. The cubic root of 61481033 is about 394.6817561640.

Adding to 61481033 its reverse (33018416), we get a palindrome (94499449).

The spelling of 61481033 in words is "sixty-one million, four hundred eighty-one thousand, thirty-three".