61606541 has 2 divisors, whose sum is σ = 61606542. Its totient is φ = 61606540.

The previous prime is 61606529. The next prime is 61606547. The reversal of 61606541 is 14560616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31685641 + 29920900 = 5629^2 + 5470^2 .

It is a cyclic number.

It is not a de Polignac number, because 61606541 - 2¹⁰ = 61605517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61606547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30803270 + 30803271.

It is an arithmetic number, because the mean of its divisors is an integer number (30803271).

Almost surely, 2^61606541 is an apocalyptic number.

It is an amenable number.

61606541 is a deficient number, since it is larger than the sum of its proper divisors (1).

61606541 is an equidigital number, since it uses as much as digits as its factorization.

61606541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 61606541 is about 7848.9834373631. The cubic root of 61606541 is about 394.9501427218.

The spelling of 61606541 in words is "sixty-one million, six hundred six thousand, five hundred forty-one".