189480719 has 2 divisors, whose sum is σ = 189480720. Its totient is φ = 189480718.

The previous prime is 189480713. The next prime is 189480763. The reversal of 189480719 is 917084981.

It is a weak prime.

It is an emirp because it is prime and its reverse (917084981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189480719 is a prime.

It is a super-2 number, since 2×189480719² = 71805885745513922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189480713) by changing a digit.

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 as a sum of consecutive naturals, namely, 94740359 + 94740360.

It is an arithmetic number, because the mean of its divisors is an integer number (94740360).

Almost surely, 2^189480719 is an apocalyptic number.

189480719 is a deficient number, since it is larger than the sum of its proper divisors (1).

189480719 is an equidigital number, since it uses as much as digits as its factorization.

189480719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 189480719 is about 13765.1995626653. The cubic root of 189480719 is about 574.3654944172.

The spelling of 189480719 in words is "one hundred eighty-nine million, four hundred eighty thousand, seven hundred nineteen".