2044142197 has 2 divisors, whose sum is σ = 2044142198. Its totient is φ = 2044142196.

The previous prime is 2044142183. The next prime is 2044142239. The reversal of 2044142197 is 7912414402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1993533201 + 50608996 = 44649^2 + 7114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044142197 - 2¹⁹ = 2043617909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044142137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022071098 + 1022071099.

It is an arithmetic number, because the mean of its divisors is an integer number (1022071099).

Almost surely, 2^2044142197 is an apocalyptic number.

It is an amenable number.

2044142197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044142197 is an equidigital number, since it uses as much as digits as its factorization.

2044142197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2044142197 is about 45212.1908007121. The cubic root of 2044142197 is about 1269.1229600981.

Adding to 2044142197 its reverse (7912414402), we get a palindrome (9956556599).

The spelling of 2044142197 in words is "two billion, forty-four million, one hundred forty-two thousand, one hundred ninety-seven".