61388941 has 2 divisors, whose sum is σ = 61388942. Its totient is φ = 61388940.

The previous prime is 61388903. The next prime is 61388953. The reversal of 61388941 is 14988316.

61388941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61168041 + 220900 = 7821^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 61388941 - 2⁹ = 61388429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61388894 and 61388903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61388441) 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, 30694470 + 30694471.

It is an arithmetic number, because the mean of its divisors is an integer number (30694471).

Almost surely, 2^61388941 is an apocalyptic number.

It is an amenable number.

61388941 is a deficient number, since it is larger than the sum of its proper divisors (1).

61388941 is an equidigital number, since it uses as much as digits as its factorization.

61388941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 61388941 is about 7835.1095078499. The cubic root of 61388941 is about 394.4845940278.

The spelling of 61388941 in words is "sixty-one million, three hundred eighty-eight thousand, nine hundred forty-one".