1992101 has 2 divisors, whose sum is σ = 1992102. Its totient is φ = 1992100.

The previous prime is 1992079. The next prime is 1992119. The reversal of 1992101 is 1012991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1600225 + 391876 = 1265^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992101 - 2¹⁸ = 1729957 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1992181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996050 + 996051.

It is an arithmetic number, because the mean of its divisors is an integer number (996051).

2^1992101 is an apocalyptic number.

It is an amenable number.

1992101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992101 is an equidigital number, since it uses as much as digits as its factorization.

1992101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1992101 is about 1411.4180812219. The cubic root of 1992101 is about 125.8260175369.

The spelling of 1992101 in words is "one million, nine hundred ninety-two thousand, one hundred one".