1342209247 has 2 divisors, whose sum is σ = 1342209248. Its totient is φ = 1342209246.

The previous prime is 1342209241. The next prime is 1342209257. The reversal of 1342209247 is 7429022431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1342209247 - 2¹¹ = 1342207199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342209241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671104623 + 671104624.

It is an arithmetic number, because the mean of its divisors is an integer number (671104624).

Almost surely, 2^1342209247 is an apocalyptic number.

1342209247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342209247 is an equidigital number, since it uses as much as digits as its factorization.

1342209247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1342209247 is about 36636.1740224058. The cubic root of 1342209247 is about 1103.0793186036.

The spelling of 1342209247 in words is "one billion, three hundred forty-two million, two hundred nine thousand, two hundred forty-seven".