3190894145 has 4 divisors (see below), whose sum is σ = 3829072980. Its totient is φ = 2552715312.

The previous prime is 3190894123. The next prime is 3190894159. The reversal of 3190894145 is 5414980913.

It is a Cunningham number, because it is equal to 56488²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5414980913 = 17 ⋅318528289.

It can be written as a sum of positive squares in 2 ways, for example, as 1148667664 + 2042226481 = 33892^2 + 45191^2 .

It is a cyclic number.

It is not a de Polignac number, because 3190894145 - 2¹² = 3190890049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3190894096 and 3190894105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319089410 + ... + 319089419.

It is an arithmetic number, because the mean of its divisors is an integer number (957268245).

Almost surely, 2^3190894145 is an apocalyptic number.

It is an amenable number.

3190894145 is a deficient number, since it is larger than the sum of its proper divisors (638178835).

3190894145 is an equidigital number, since it uses as much as digits as its factorization.

3190894145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638178834.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 3190894145 is about 56488.0000088514. Note that the first 5 decimals coincide. The cubic root of 3190894145 is about 1472.2135108497.

The spelling of 3190894145 in words is "three billion, one hundred ninety million, eight hundred ninety-four thousand, one hundred forty-five".