34021020149 has 2 divisors, whose sum is σ = 34021020150. Its totient is φ = 34021020148.

The previous prime is 34021020127. The next prime is 34021020151. The reversal of 34021020149 is 94102012043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18146784100 + 15874236049 = 134710^2 + 125993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34021020149 is a prime.

Together with 34021020151, 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 (34021020749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010510074 + 17010510075.

It is an arithmetic number, because the mean of its divisors is an integer number (17010510075).

Almost surely, 2^34021020149 is an apocalyptic number.

It is an amenable number.

34021020149 is a deficient number, since it is larger than the sum of its proper divisors (1).

34021020149 is an equidigital number, since it uses as much as digits as its factorization.

34021020149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 34021020149 in words is "thirty-four billion, twenty-one million, twenty thousand, one hundred forty-nine".