156134207609 has 2 divisors, whose sum is σ = 156134207610. Its totient is φ = 156134207608.

The previous prime is 156134207419. The next prime is 156134207611. The reversal of 156134207609 is 906702431651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150798635584 + 5335572025 = 388328^2 + 73045^2 .

It is an emirp because it is prime and its reverse (906702431651) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 156134207609 - 2³² = 151839240313 is a prime.

Together with 156134207611, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156134207609.

It is not a weakly prime, because it can be changed into another prime (156134207639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78067103804 + 78067103805.

It is an arithmetic number, because the mean of its divisors is an integer number (78067103805).

Almost surely, 2^156134207609 is an apocalyptic number.

It is an amenable number.

156134207609 is a deficient number, since it is larger than the sum of its proper divisors (1).

156134207609 is an equidigital number, since it uses as much as digits as its factorization.

156134207609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 156134207609 in words is "one hundred fifty-six billion, one hundred thirty-four million, two hundred seven thousand, six hundred nine".