145224179 has 2 divisors, whose sum is σ = 145224180. Its totient is φ = 145224178.

The previous prime is 145224137. The next prime is 145224253. The reversal of 145224179 is 971422541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145224179 is a prime.

It is not a weakly prime, because it can be changed into another prime (145224379) 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, 72612089 + 72612090.

It is an arithmetic number, because the mean of its divisors is an integer number (72612090).

Almost surely, 2^145224179 is an apocalyptic number.

145224179 is a deficient number, since it is larger than the sum of its proper divisors (1).

145224179 is an equidigital number, since it uses as much as digits as its factorization.

145224179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 145224179 is about 12050.8995099951. The cubic root of 145224179 is about 525.6293936036.

The spelling of 145224179 in words is "one hundred forty-five million, two hundred twenty-four thousand, one hundred seventy-nine".