196156349 has 2 divisors, whose sum is σ = 196156350. Its totient is φ = 196156348.

The previous prime is 196156283. The next prime is 196156357. The reversal of 196156349 is 943651691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145033849 + 51122500 = 12043^2 + 7150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196156349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196150349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98078174 + 98078175.

It is an arithmetic number, because the mean of its divisors is an integer number (98078175).

Almost surely, 2^196156349 is an apocalyptic number.

It is an amenable number.

196156349 is a deficient number, since it is larger than the sum of its proper divisors (1).

196156349 is an equidigital number, since it uses as much as digits as its factorization.

196156349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 196156349 is about 14005.5827797347. The cubic root of 196156349 is about 581.0329877200.

The spelling of 196156349 in words is "one hundred ninety-six million, one hundred fifty-six thousand, three hundred forty-nine".