190319489 has 4 divisors (see below), whose sum is σ = 196882260. Its totient is φ = 183756720.

The previous prime is 190319477. The next prime is 190319491. The reversal of 190319489 is 984913091.

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 81993025 + 108326464 = 9055^2 + 10408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190319489 is a prime.

It is a super-2 number, since 2×190319489² = 72443015786442242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190319189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3281342 + ... + 3281399.

It is an arithmetic number, because the mean of its divisors is an integer number (49220565).

Almost surely, 2^190319489 is an apocalyptic number.

It is an amenable number.

190319489 is a deficient number, since it is larger than the sum of its proper divisors (6562771).

190319489 is an equidigital number, since it uses as much as digits as its factorization.

190319489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562770.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 190319489 is about 13795.6329684433. The cubic root of 190319489 is about 575.2117571666.

The spelling of 190319489 in words is "one hundred ninety million, three hundred nineteen thousand, four hundred eighty-nine".