190704945 has 8 divisors (see below), whose sum is σ = 305127936. Its totient is φ = 101709296.

The previous prime is 190704931. The next prime is 190705003. The reversal of 190704945 is 549407091.

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 190704945 - 2⁹ = 190704433 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6356817 + ... + 6356846.

It is an arithmetic number, because the mean of its divisors is an integer number (38140992).

Almost surely, 2^190704945 is an apocalyptic number.

190704945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190704945 is a deficient number, since it is larger than the sum of its proper divisors (114422991).

190704945 is a wasteful number, since it uses less digits than its factorization.

190704945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713671.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 190704945 is about 13809.5961200898. The cubic root of 190704945 is about 575.5998227107.

The spelling of 190704945 in words is "one hundred ninety million, seven hundred four thousand, nine hundred forty-five".