1351340161 has 2 divisors, whose sum is σ = 1351340162. Its totient is φ = 1351340160.

The previous prime is 1351340141. The next prime is 1351340167. The reversal of 1351340161 is 1610431531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738480625 + 612859536 = 27175^2 + 24756^2 .

It is an emirp because it is prime and its reverse (1610431531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1351340161 - 2¹⁵ = 1351307393 is a prime.

It is a super-2 number, since 2×1351340161² = 3652240461463011842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1351340167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675670080 + 675670081.

It is an arithmetic number, because the mean of its divisors is an integer number (675670081).

Almost surely, 2^1351340161 is an apocalyptic number.

It is an amenable number.

1351340161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351340161 is an equidigital number, since it uses as much as digits as its factorization.

1351340161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1351340161 is about 36760.5788991414. The cubic root of 1351340161 is about 1105.5750468144.

Adding to 1351340161 its reverse (1610431531), we get a palindrome (2961771692).

The spelling of 1351340161 in words is "one billion, three hundred fifty-one million, three hundred forty thousand, one hundred sixty-one".