199290375 has 56 divisors (see below), whose sum is σ = 373071504. Its totient is φ = 106288200.

The previous prime is 199290359. The next prime is 199290391. The reversal of 199290375 is 573092991.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

199290375 is a `hidden beast` number, since 199 + 2 + 90 + 375 = 666.

It is an interprime number because it is at equal distance from previous prime (199290359) and next prime (199290391).

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=405.

It is not a de Polignac number, because 199290375 - 2⁴ = 199290359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 199290375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 39858073 + ... + 39858077.

Almost surely, 2^199290375 is an apocalyptic number.

199290375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199290375 is a deficient number, since it is larger than the sum of its proper divisors (173781129).

199290375 is an frugal number, since it uses more digits than its factorization.

199290375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 8 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 199290375 is about 14117.0242969260. The cubic root of 199290375 is about 584.1110759745. Note that the first 3 decimals are identical.

The spelling of 199290375 in words is "one hundred ninety-nine million, two hundred ninety thousand, three hundred seventy-five".