342012949 has 2 divisors, whose sum is σ = 342012950. Its totient is φ = 342012948.

The previous prime is 342012947. The next prime is 342012971. The reversal of 342012949 is 949210243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303386724 + 38626225 = 17418^2 + 6215^2 .

It is an emirp because it is prime and its reverse (949210243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342012949 - 2¹ = 342012947 is a prime.

Together with 342012947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342012943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171006474 + 171006475.

It is an arithmetic number, because the mean of its divisors is an integer number (171006475).

Almost surely, 2^342012949 is an apocalyptic number.

It is an amenable number.

342012949 is a deficient number, since it is larger than the sum of its proper divisors (1).

342012949 is an equidigital number, since it uses as much as digits as its factorization.

342012949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 342012949 is about 18493.5921064568. The cubic root of 342012949 is about 699.3278916131.

The spelling of 342012949 in words is "three hundred forty-two million, twelve thousand, nine hundred forty-nine".