61541611 has 2 divisors, whose sum is σ = 61541612. Its totient is φ = 61541610.

The previous prime is 61541587. The next prime is 61541617. The reversal of 61541611 is 11614516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61541611 - 2⁷ = 61541483 is a prime.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (61541617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30770805 + 30770806.

It is an arithmetic number, because the mean of its divisors is an integer number (30770806).

Almost surely, 2^61541611 is an apocalyptic number.

61541611 is a deficient number, since it is larger than the sum of its proper divisors (1).

61541611 is an equidigital number, since it uses as much as digits as its factorization.

61541611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 61541611 is about 7844.8461425321. The cubic root of 61541611 is about 394.8113418369.

The spelling of 61541611 in words is "sixty-one million, five hundred forty-one thousand, six hundred eleven".