196256237 has 2 divisors, whose sum is σ = 196256238. Its totient is φ = 196256236.

The previous prime is 196256219. The next prime is 196256287. The reversal of 196256237 is 732652691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158482921 + 37773316 = 12589^2 + 6146^2 .

It is an emirp because it is prime and its reverse (732652691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196256237 - 2⁶ = 196256173 is a prime.

It is a super-2 number, since 2×196256237² = 77033021122800338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 196256194 and 196256203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196256287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98128118 + 98128119.

It is an arithmetic number, because the mean of its divisors is an integer number (98128119).

Almost surely, 2^196256237 is an apocalyptic number.

It is an amenable number.

196256237 is a deficient number, since it is larger than the sum of its proper divisors (1).

196256237 is an equidigital number, since it uses as much as digits as its factorization.

196256237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 196256237 is about 14009.1483324291. The cubic root of 196256237 is about 581.1315967711.

The spelling of 196256237 in words is "one hundred ninety-six million, two hundred fifty-six thousand, two hundred thirty-seven".