1042211897 has 2 divisors, whose sum is σ = 1042211898. Its totient is φ = 1042211896.

The previous prime is 1042211869. The next prime is 1042211917. The reversal of 1042211897 is 7981122401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 759333136 + 282878761 = 27556^2 + 16819^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042211897 - 2¹⁴ = 1042195513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042211837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521105948 + 521105949.

It is an arithmetic number, because the mean of its divisors is an integer number (521105949).

Almost surely, 2^1042211897 is an apocalyptic number.

It is an amenable number.

1042211897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042211897 is an equidigital number, since it uses as much as digits as its factorization.

1042211897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1042211897 is about 32283.3067853961. The cubic root of 1042211897 is about 1013.8771658009.

The spelling of 1042211897 in words is "one billion, forty-two million, two hundred eleven thousand, eight hundred ninety-seven".