136923470237 has 2 divisors, whose sum is σ = 136923470238. Its totient is φ = 136923470236.

The previous prime is 136923470231. The next prime is 136923470263. The reversal of 136923470237 is 732074329631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135817309156 + 1106161081 = 368534^2 + 33259^2 .

It is an emirp because it is prime and its reverse (732074329631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136923470237 - 2⁴ = 136923470221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136923470191 and 136923470200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136923470231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68461735118 + 68461735119.

It is an arithmetic number, because the mean of its divisors is an integer number (68461735119).

Almost surely, 2^136923470237 is an apocalyptic number.

It is an amenable number.

136923470237 is a deficient number, since it is larger than the sum of its proper divisors (1).

136923470237 is an equidigital number, since it uses as much as digits as its factorization.

136923470237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 47.

Adding to 136923470237 its reverse (732074329631), we get a palindrome (868997799868).

The spelling of 136923470237 in words is "one hundred thirty-six billion, nine hundred twenty-three million, four hundred seventy thousand, two hundred thirty-seven".