134134332320161 has 2 divisors, whose sum is σ = 134134332320162. Its totient is φ = 134134332320160.

The previous prime is 134134332320123. The next prime is 134134332320243. The reversal of 134134332320161 is 161023233431431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99145214494561 + 34989117825600 = 9957169^2 + 5915160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134134332320161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134134332320161.

It is not a weakly prime, because it can be changed into another prime (134134332320101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67067166160080 + 67067166160081.

It is an arithmetic number, because the mean of its divisors is an integer number (67067166160081).

Almost surely, 2^{134134332320161} is an apocalyptic number.

It is an amenable number.

134134332320161 is a deficient number, since it is larger than the sum of its proper divisors (1).

134134332320161 is an equidigital number, since it uses as much as digits as its factorization.

134134332320161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

Adding to 134134332320161 its reverse (161023233431431), we get a palindrome (295157565751592).

The spelling of 134134332320161 in words is "one hundred thirty-four trillion, one hundred thirty-four billion, three hundred thirty-two million, three hundred twenty thousand, one hundred sixty-one".