61445383 has 2 divisors, whose sum is σ = 61445384. Its totient is φ = 61445382.

The previous prime is 61445381. The next prime is 61445387. The reversal of 61445383 is 38354416.

It is a happy number.

61445383 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 is a cyclic number.

It is not a de Polignac number, because 61445383 - 2¹ = 61445381 is a prime.

Together with 61445381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61445381) 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, 30722691 + 30722692.

It is an arithmetic number, because the mean of its divisors is an integer number (30722692).

Almost surely, 2^61445383 is an apocalyptic number.

61445383 is a deficient number, since it is larger than the sum of its proper divisors (1).

61445383 is an equidigital number, since it uses as much as digits as its factorization.

61445383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 61445383 is about 7838.7105444709. The cubic root of 61445383 is about 394.6054555317.

Adding to 61445383 its reverse (38354416), we get a palindrome (99799799).

The spelling of 61445383 in words is "sixty-one million, four hundred forty-five thousand, three hundred eighty-three".