61541771 has 2 divisors, whose sum is σ = 61541772. Its totient is φ = 61541770.

The previous prime is 61541723. The next prime is 61541797. The reversal of 61541771 is 17714516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61541771 - 2¹⁰ = 61540747 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (61544771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30770885 + 30770886.

It is an arithmetic number, because the mean of its divisors is an integer number (30770886).

Almost surely, 2^61541771 is an apocalyptic number.

61541771 is a deficient number, since it is larger than the sum of its proper divisors (1).

61541771 is an equidigital number, since it uses as much as digits as its factorization.

61541771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 32.

The square root of 61541771 is about 7844.8563403035. The cubic root of 61541771 is about 394.8116839889.

The spelling of 61541771 in words is "sixty-one million, five hundred forty-one thousand, seven hundred seventy-one".