1051616197 has 2 divisors, whose sum is σ = 1051616198. Its totient is φ = 1051616196.

The previous prime is 1051616101. The next prime is 1051616219. The reversal of 1051616197 is 7916161501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1049695201 + 1920996 = 32399^2 + 1386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051616197 - 2²³ = 1043227589 is a prime.

It is a super-2 number, since 2×1051616197² = 2211793251585485618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051616297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525808098 + 525808099.

It is an arithmetic number, because the mean of its divisors is an integer number (525808099).

Almost surely, 2^1051616197 is an apocalyptic number.

It is an amenable number.

1051616197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051616197 is an equidigital number, since it uses as much as digits as its factorization.

1051616197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 1051616197 is about 32428.6323640082. The cubic root of 1051616197 is about 1016.9175805071.

Adding to 1051616197 its reverse (7916161501), we get a palindrome (8967777698).

The spelling of 1051616197 in words is "one billion, fifty-one million, six hundred sixteen thousand, one hundred ninety-seven".