65161049 has 2 divisors, whose sum is σ = 65161050. Its totient is φ = 65161048.

The previous prime is 65161027. The next prime is 65161069. The reversal of 65161049 is 94016156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64513024 + 648025 = 8032^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 65161049 - 2⁸ = 65160793 is a prime.

It is not a weakly prime, because it can be changed into another prime (65161069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32580524 + 32580525.

It is an arithmetic number, because the mean of its divisors is an integer number (32580525).

Almost surely, 2^65161049 is an apocalyptic number.

It is an amenable number.

65161049 is a deficient number, since it is larger than the sum of its proper divisors (1).

65161049 is an equidigital number, since it uses as much as digits as its factorization.

65161049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 65161049 is about 8072.2394042793. The cubic root of 65161049 is about 402.4043706304.

The spelling of 65161049 in words is "sixty-five million, one hundred sixty-one thousand, forty-nine".