192661541 has 2 divisors, whose sum is σ = 192661542. Its totient is φ = 192661540.

The previous prime is 192661537. The next prime is 192661571. The reversal of 192661541 is 145166291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167159041 + 25502500 = 12929^2 + 5050^2 .

It is a cyclic number.

It is not a de Polignac number, because 192661541 - 2² = 192661537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192661531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96330770 + 96330771.

It is an arithmetic number, because the mean of its divisors is an integer number (96330771).

Almost surely, 2^192661541 is an apocalyptic number.

It is an amenable number.

192661541 is a deficient number, since it is larger than the sum of its proper divisors (1).

192661541 is an equidigital number, since it uses as much as digits as its factorization.

192661541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 192661541 is about 13880.2572382503. The cubic root of 192661541 is about 577.5616430642.

The spelling of 192661541 in words is "one hundred ninety-two million, six hundred sixty-one thousand, five hundred forty-one".