196040437 has 2 divisors, whose sum is σ = 196040438. Its totient is φ = 196040436.

The previous prime is 196040407. The next prime is 196040441. The reversal of 196040437 is 734040691.

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., 185340996 + 10699441 = 13614^2 + 3271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196040437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196040407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98020218 + 98020219.

It is an arithmetic number, because the mean of its divisors is an integer number (98020219).

Almost surely, 2^196040437 is an apocalyptic number.

It is an amenable number.

196040437 is a deficient number, since it is larger than the sum of its proper divisors (1).

196040437 is an equidigital number, since it uses as much as digits as its factorization.

196040437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 196040437 is about 14001.4441040915. Note that the first 3 decimals coincide. The cubic root of 196040437 is about 580.9185178661.

The spelling of 196040437 in words is "one hundred ninety-six million, forty thousand, four hundred thirty-seven".