61440371 has 2 divisors, whose sum is σ = 61440372. Its totient is φ = 61440370.

The previous prime is 61440367. The next prime is 61440439. The reversal of 61440371 is 17304416.

61440371 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 61440371 - 2² = 61440367 is a prime.

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 61440371.

It is not a weakly prime, because it can be changed into another prime (61440331) 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, 30720185 + 30720186.

It is an arithmetic number, because the mean of its divisors is an integer number (30720186).

Almost surely, 2^61440371 is an apocalyptic number.

61440371 is a deficient number, since it is larger than the sum of its proper divisors (1).

61440371 is an equidigital number, since it uses as much as digits as its factorization.

61440371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 61440371 is about 7838.3908425135. The cubic root of 61440371 is about 394.5947261314.

Adding to 61440371 its reverse (17304416), we get a palindrome (78744787).

The spelling of 61440371 in words is "sixty-one million, four hundred forty thousand, three hundred seventy-one".