196751945 has 8 divisors (see below), whose sum is σ = 254264136. Its totient is φ = 145293696.

The previous prime is 196751927. The next prime is 196751983. The reversal of 196751945 is 549157691.

196751945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10374841 + 186377104 = 3221^2 + 13652^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196751945 - 2⁶ = 196751881 is a prime.

It is a super-2 number, since 2×196751945² = 77422655722566050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196751945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513412 + ... + 1513541.

It is an arithmetic number, because the mean of its divisors is an integer number (31783017).

Almost surely, 2^196751945 is an apocalyptic number.

It is an amenable number.

196751945 is a deficient number, since it is larger than the sum of its proper divisors (57512191).

196751945 is a wasteful number, since it uses less digits than its factorization.

196751945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026971.

The product of its digits is 340200, while the sum is 47.

The square root of 196751945 is about 14026.8294706965. The cubic root of 196751945 is about 581.6204634125.

The spelling of 196751945 in words is "one hundred ninety-six million, seven hundred fifty-one thousand, nine hundred forty-five".