196957281 has 16 divisors (see below), whose sum is σ = 268139520. Its totient is φ = 128558160.

The previous prime is 196957273. The next prime is 196957283. The reversal of 196957281 is 182759691.

It is not a de Polignac number, because 196957281 - 2³ = 196957273 is a prime.

It is a super-2 number, since 2×196957281² = 77584341077825922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196957281.

It is not an unprimeable number, because it can be changed into a prime (196957283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44436 + ... + 48666.

It is an arithmetic number, because the mean of its divisors is an integer number (16758720).

Almost surely, 2^196957281 is an apocalyptic number.

It is an amenable number.

196957281 is a deficient number, since it is larger than the sum of its proper divisors (71182239).

196957281 is a wasteful number, since it uses less digits than its factorization.

196957281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556.

The product of its digits is 272160, while the sum is 48.

The square root of 196957281 is about 14034.1469637452. The cubic root of 196957281 is about 581.8227250259.

The spelling of 196957281 in words is "one hundred ninety-six million, nine hundred fifty-seven thousand, two hundred eighty-one".