199122607 has 4 divisors (see below), whose sum is σ = 199253200. Its totient is φ = 198992016.

The previous prime is 199122601. The next prime is 199122619. The reversal of 199122607 is 706221991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 706221991 = 857 ⋅824063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199122607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199122601) 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, 62982 + ... + 66067.

It is an arithmetic number, because the mean of its divisors is an integer number (49813300).

Almost surely, 2^199122607 is an apocalyptic number.

199122607 is a deficient number, since it is larger than the sum of its proper divisors (130593).

199122607 is a wasteful number, since it uses less digits than its factorization.

199122607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130592.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 199122607 is about 14111.0810004053. The cubic root of 199122607 is about 583.9471231524.

The spelling of 199122607 in words is "one hundred ninety-nine million, one hundred twenty-two thousand, six hundred seven".