196091437 has 2 divisors, whose sum is σ = 196091438. Its totient is φ = 196091436.

The previous prime is 196091387. The next prime is 196091443. The reversal of 196091437 is 734190691.

196091437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193933476 + 2157961 = 13926^2 + 1469^2 .

It is a cyclic number.

It is not a de Polignac number, because 196091437 - 2¹⁵ = 196058669 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 196091437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196091737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98045718 + 98045719.

It is an arithmetic number, because the mean of its divisors is an integer number (98045719).

Almost surely, 2^196091437 is an apocalyptic number.

It is an amenable number.

196091437 is a deficient number, since it is larger than the sum of its proper divisors (1).

196091437 is an equidigital number, since it uses as much as digits as its factorization.

196091437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 196091437 is about 14003.2652263677. The cubic root of 196091437 is about 580.9688888951.

The spelling of 196091437 in words is "one hundred ninety-six million, ninety-one thousand, four hundred thirty-seven".