196078451 has 4 divisors (see below), whose sum is σ = 196154112. Its totient is φ = 196002792.

The previous prime is 196078447. The next prime is 196078469. The reversal of 196078451 is 154870691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196078451 - 2² = 196078447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196078399 and 196078408.

It is not an unprimeable number, because it can be changed into a prime (196074451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33800 + ... + 39173.

It is an arithmetic number, because the mean of its divisors is an integer number (49038528).

Almost surely, 2^196078451 is an apocalyptic number.

196078451 is a deficient number, since it is larger than the sum of its proper divisors (75661).

196078451 is an equidigital number, since it uses as much as digits as its factorization.

196078451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75660.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 196078451 is about 14002.8015411203. The cubic root of 196078451 is about 580.9560638773.

The spelling of 196078451 in words is "one hundred ninety-six million, seventy-eight thousand, four hundred fifty-one".