196236137 has 2 divisors, whose sum is σ = 196236138. Its totient is φ = 196236136.

The previous prime is 196236121. The next prime is 196236223. The reversal of 196236137 is 731632691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116294656 + 79941481 = 10784^2 + 8941^2 .

It is a cyclic number.

It is not a de Polignac number, because 196236137 - 2⁴ = 196236121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 196236137.

It is not a weakly prime, because it can be changed into another prime (196236737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98118068 + 98118069.

It is an arithmetic number, because the mean of its divisors is an integer number (98118069).

Almost surely, 2^196236137 is an apocalyptic number.

It is an amenable number.

196236137 is a deficient number, since it is larger than the sum of its proper divisors (1).

196236137 is an equidigital number, since it uses as much as digits as its factorization.

196236137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 38.

The square root of 196236137 is about 14008.4309256961. The cubic root of 196236137 is about 581.1117568175. Note that the first 3 decimals are identical.

The spelling of 196236137 in words is "one hundred ninety-six million, two hundred thirty-six thousand, one hundred thirty-seven".