61433249 has 2 divisors, whose sum is σ = 61433250. Its totient is φ = 61433248.

The previous prime is 61433243. The next prime is 61433263. The reversal of 61433249 is 94233416.

61433249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61340224 + 93025 = 7832^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 61433249 - 2¹² = 61429153 is a prime.

It is not a weakly prime, because it can be changed into another prime (61433243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30716624 + 30716625.

It is an arithmetic number, because the mean of its divisors is an integer number (30716625).

Almost surely, 2^61433249 is an apocalyptic number.

It is an amenable number.

61433249 is a deficient number, since it is larger than the sum of its proper divisors (1).

61433249 is an equidigital number, since it uses as much as digits as its factorization.

61433249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 61433249 is about 7837.9365269183. The cubic root of 61433249 is about 394.5794787613.

The spelling of 61433249 in words is "sixty-one million, four hundred thirty-three thousand, two hundred forty-nine".