61332913 has 2 divisors, whose sum is σ = 61332914. Its totient is φ = 61332912.

The previous prime is 61332871. The next prime is 61332917. The reversal of 61332913 is 31923316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31225744 + 30107169 = 5588^2 + 5487^2 .

It is a cyclic number.

It is not a de Polignac number, because 61332913 - 2¹⁷ = 61201841 is a prime.

It is not a weakly prime, because it can be changed into another prime (61332917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30666456 + 30666457.

It is an arithmetic number, because the mean of its divisors is an integer number (30666457).

Almost surely, 2^61332913 is an apocalyptic number.

It is an amenable number.

61332913 is a deficient number, since it is larger than the sum of its proper divisors (1).

61332913 is an equidigital number, since it uses as much as digits as its factorization.

61332913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 28.

The square root of 61332913 is about 7831.5332470724. The cubic root of 61332913 is about 394.3645457482.

The spelling of 61332913 in words is "sixty-one million, three hundred thirty-two thousand, nine hundred thirteen".