80145419 has 4 divisors (see below), whose sum is σ = 80939040. Its totient is φ = 79351800.

The previous prime is 80145389. The next prime is 80145427. The reversal of 80145419 is 91454108.

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

It is a cyclic number.

It is not a de Polignac number, because 80145419 - 2¹² = 80141323 is a prime.

It is a super-2 number, since 2×80145419² = 12846576373371122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80145469) 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, 396659 + ... + 396860.

It is an arithmetic number, because the mean of its divisors is an integer number (20234760).

Almost surely, 2^80145419 is an apocalyptic number.

80145419 is a deficient number, since it is larger than the sum of its proper divisors (793621).

80145419 is a wasteful number, since it uses less digits than its factorization.

80145419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793620.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 80145419 is about 8952.3973884094. The cubic root of 80145419 is about 431.1478597563.

The spelling of 80145419 in words is "eighty million, one hundred forty-five thousand, four hundred nineteen".