199225078 has 16 divisors (see below), whose sum is σ = 323277696. Its totient is φ = 91535040.

The previous prime is 199225049. The next prime is 199225079. The reversal of 199225078 is 870522991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199225079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11383 + ... + 22978.

It is an arithmetic number, because the mean of its divisors is an integer number (20204856).

Almost surely, 2^199225078 is an apocalyptic number.

199225078 is a deficient number, since it is larger than the sum of its proper divisors (124052618).

199225078 is a wasteful number, since it uses less digits than its factorization.

199225078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34599.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 199225078 is about 14114.7114033550. The cubic root of 199225078 is about 584.0472748213.

The spelling of 199225078 in words is "one hundred ninety-nine million, two hundred twenty-five thousand, seventy-eight".