190894513 has 4 divisors (see below), whose sum is σ = 202123620. Its totient is φ = 179665408.

The previous prime is 190894471. The next prime is 190894519. The reversal of 190894513 is 315498091.

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

It can be written as a sum of positive squares in 2 ways, for example, as 161213809 + 29680704 = 12697^2 + 5448^2 .

It is a cyclic number.

It is not a de Polignac number, because 190894513 - 2¹³ = 190886321 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190894519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5614528 + ... + 5614561.

It is an arithmetic number, because the mean of its divisors is an integer number (50530905).

Almost surely, 2^190894513 is an apocalyptic number.

It is an amenable number.

190894513 is a deficient number, since it is larger than the sum of its proper divisors (11229107).

190894513 is a wasteful number, since it uses less digits than its factorization.

190894513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229106.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 190894513 is about 13816.4580482843. The cubic root of 190894513 is about 575.7904822873.

The spelling of 190894513 in words is "one hundred ninety million, eight hundred ninety-four thousand, five hundred thirteen".