134262221549 has 2 divisors, whose sum is σ = 134262221550. Its totient is φ = 134262221548.

The previous prime is 134262221503. The next prime is 134262221551. The reversal of 134262221549 is 945122262431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126248749225 + 8013472324 = 355315^2 + 89518^2 .

It is a cyclic number.

It is not a de Polignac number, because 134262221549 - 2⁸ = 134262221293 is a prime.

Together with 134262221551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134262821549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67131110774 + 67131110775.

It is an arithmetic number, because the mean of its divisors is an integer number (67131110775).

Almost surely, 2^134262221549 is an apocalyptic number.

It is an amenable number.

134262221549 is a deficient number, since it is larger than the sum of its proper divisors (1).

134262221549 is an equidigital number, since it uses as much as digits as its factorization.

134262221549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The spelling of 134262221549 in words is "one hundred thirty-four billion, two hundred sixty-two million, two hundred twenty-one thousand, five hundred forty-nine".