1242552341 has 2 divisors, whose sum is σ = 1242552342. Its totient is φ = 1242552340.

The previous prime is 1242552317. The next prime is 1242552343. The reversal of 1242552341 is 1432552421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 995402500 + 247149841 = 31550^2 + 15721^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242552341 - 2⁶ = 1242552277 is a prime.

Together with 1242552343, 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 (1242552343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621276170 + 621276171.

It is an arithmetic number, because the mean of its divisors is an integer number (621276171).

Almost surely, 2^1242552341 is an apocalyptic number.

It is an amenable number.

1242552341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242552341 is an equidigital number, since it uses as much as digits as its factorization.

1242552341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 29.

The square root of 1242552341 is about 35249.8559004147. The cubic root of 1242552341 is about 1075.0736826366.

The spelling of 1242552341 in words is "one billion, two hundred forty-two million, five hundred fifty-two thousand, three hundred forty-one".