61332541 has 2 divisors, whose sum is σ = 61332542. Its totient is φ = 61332540.

The previous prime is 61332529. The next prime is 61332563. The reversal of 61332541 is 14523316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43943641 + 17388900 = 6629^2 + 4170^2 .

It is a cyclic number.

It is not a de Polignac number, because 61332541 - 2²⁵ = 27778109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61332581) 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, 30666270 + 30666271.

It is an arithmetic number, because the mean of its divisors is an integer number (30666271).

Almost surely, 2^61332541 is an apocalyptic number.

It is an amenable number.

61332541 is a deficient number, since it is larger than the sum of its proper divisors (1).

61332541 is an equidigital number, since it uses as much as digits as its factorization.

61332541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 61332541 is about 7831.5094968978. The cubic root of 61332541 is about 394.3637484389.

Adding to 61332541 its reverse (14523316), we get a palindrome (75855857).

The spelling of 61332541 in words is "sixty-one million, three hundred thirty-two thousand, five hundred forty-one".