161160541 has 2 divisors, whose sum is σ = 161160542. Its totient is φ = 161160540.

The previous prime is 161160491. The next prime is 161160551. The reversal of 161160541 is 145061161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155500900 + 5659641 = 12470^2 + 2379^2 .

It is a cyclic number.

It is not a de Polignac number, because 161160541 - 2²¹ = 159063389 is a prime.

It is equal to p_9036016 and since 161160541 and 9036016 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161160551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80580270 + 80580271.

It is an arithmetic number, because the mean of its divisors is an integer number (80580271).

Almost surely, 2^161160541 is an apocalyptic number.

It is an amenable number.

161160541 is a deficient number, since it is larger than the sum of its proper divisors (1).

161160541 is an equidigital number, since it uses as much as digits as its factorization.

161160541 is an evil number, because the sum of its binary digits is even.

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

The square root of 161160541 is about 12694.9021658302. The cubic root of 161160541 is about 544.1929428868.

The spelling of 161160541 in words is "one hundred sixty-one million, one hundred sixty thousand, five hundred forty-one".