134444122157 has 2 divisors, whose sum is σ = 134444122158. Its totient is φ = 134444122156.

The previous prime is 134444122049. The next prime is 134444122159. The reversal of 134444122157 is 751221444431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102982586281 + 31461535876 = 320909^2 + 177374^2 .

It is a cyclic number.

It is not a de Polignac number, because 134444122157 - 2⁸ = 134444121901 is a prime.

Together with 134444122159, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134444122157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134444122159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67222061078 + 67222061079.

It is an arithmetic number, because the mean of its divisors is an integer number (67222061079).

Almost surely, 2^134444122157 is an apocalyptic number.

It is an amenable number.

134444122157 is a deficient number, since it is larger than the sum of its proper divisors (1).

134444122157 is an equidigital number, since it uses as much as digits as its factorization.

134444122157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

Adding to 134444122157 its reverse (751221444431), we get a palindrome (885665566588).

The spelling of 134444122157 in words is "one hundred thirty-four billion, four hundred forty-four million, one hundred twenty-two thousand, one hundred fifty-seven".