1055340197 has 2 divisors, whose sum is σ = 1055340198. Its totient is φ = 1055340196.

The previous prime is 1055340173. The next prime is 1055340217. The reversal of 1055340197 is 7910435501.

It is a Cunningham number, because it is equal to 32486²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1055340196 + 1 = 32486^2 + 1^2 .

It is an emirp because it is prime and its reverse (7910435501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055340197 - 2⁸ = 1055339941 is a prime.

It is a super-2 number, since 2×1055340197² = 2227485862807997618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055340157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527670098 + 527670099.

It is an arithmetic number, because the mean of its divisors is an integer number (527670099).

Almost surely, 2^1055340197 is an apocalyptic number.

It is an amenable number.

1055340197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055340197 is an equidigital number, since it uses as much as digits as its factorization.

1055340197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1055340197 is about 32486.0000153912. Note that the first 4 decimals coincide. The cubic root of 1055340197 is about 1018.1165412617.

Adding to 1055340197 its reverse (7910435501), we get a palindrome (8965775698).

The spelling of 1055340197 in words is "one billion, fifty-five million, three hundred forty thousand, one hundred ninety-seven".