196469521 has 2 divisors, whose sum is σ = 196469522. Its totient is φ = 196469520.

The previous prime is 196469501. The next prime is 196469591. The reversal of 196469521 is 125964691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194993296 + 1476225 = 13964^2 + 1215^2 .

It is a cyclic number.

It is not a de Polignac number, because 196469521 - 2¹⁷ = 196338449 is a prime.

It is not a weakly prime, because it can be changed into another prime (196469501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98234760 + 98234761.

It is an arithmetic number, because the mean of its divisors is an integer number (98234761).

Almost surely, 2^196469521 is an apocalyptic number.

It is an amenable number.

196469521 is a deficient number, since it is larger than the sum of its proper divisors (1).

196469521 is an equidigital number, since it uses as much as digits as its factorization.

196469521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 196469521 is about 14016.7585767894. The cubic root of 196469521 is about 581.3420379788.

The spelling of 196469521 in words is "one hundred ninety-six million, four hundred sixty-nine thousand, five hundred twenty-one".