196738451 has 16 divisors (see below), whose sum is σ = 242472384. Its totient is φ = 155447424.

The previous prime is 196738441. The next prime is 196738453. The reversal of 196738451 is 154837691.

It is a cyclic number.

It is not a de Polignac number, because 196738451 - 2⁶ = 196738387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196738453) 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 in 15 ways as a sum of consecutive naturals, for example, 115361 + ... + 117053.

It is an arithmetic number, because the mean of its divisors is an integer number (15154524).

Almost surely, 2^196738451 is an apocalyptic number.

196738451 is a deficient number, since it is larger than the sum of its proper divisors (45733933).

196738451 is a wasteful number, since it uses less digits than its factorization.

196738451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990.

The product of its digits is 181440, while the sum is 44.

The square root of 196738451 is about 14026.3484556744. The cubic root of 196738451 is about 581.6071665241.

The spelling of 196738451 in words is "one hundred ninety-six million, seven hundred thirty-eight thousand, four hundred fifty-one".