1342759217 has 2 divisors, whose sum is σ = 1342759218. Its totient is φ = 1342759216.

The previous prime is 1342759213. The next prime is 1342759219. The reversal of 1342759217 is 7129572431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1219127056 + 123632161 = 34916^2 + 11119^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342759217 - 2² = 1342759213 is a prime.

Together with 1342759219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1342759213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671379608 + 671379609.

It is an arithmetic number, because the mean of its divisors is an integer number (671379609).

Almost surely, 2^1342759217 is an apocalyptic number.

It is an amenable number.

1342759217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342759217 is an equidigital number, since it uses as much as digits as its factorization.

1342759217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 1342759217 is about 36643.6790865764. The cubic root of 1342759217 is about 1103.2299602152.

The spelling of 1342759217 in words is "one billion, three hundred forty-two million, seven hundred fifty-nine thousand, two hundred seventeen".