145684879 has 2 divisors, whose sum is σ = 145684880. Its totient is φ = 145684878.

The previous prime is 145684871. The next prime is 145684907. The reversal of 145684879 is 978486541.

It is a weak prime.

It is an emirp because it is prime and its reverse (978486541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145684879 - 2³ = 145684871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145684871) 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, 72842439 + 72842440.

It is an arithmetic number, because the mean of its divisors is an integer number (72842440).

Almost surely, 2^145684879 is an apocalyptic number.

145684879 is a deficient number, since it is larger than the sum of its proper divisors (1).

145684879 is an equidigital number, since it uses as much as digits as its factorization.

145684879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 52.

The square root of 145684879 is about 12069.9991300745. Note that the first 3 decimals coincide. The cubic root of 145684879 is about 526.1846313638.

The spelling of 145684879 in words is "one hundred forty-five million, six hundred eighty-four thousand, eight hundred seventy-nine".