145777019 has 2 divisors, whose sum is σ = 145777020. Its totient is φ = 145777018.

The previous prime is 145777001. The next prime is 145777031. The reversal of 145777019 is 910777541.

It is a strong prime.

It is an emirp because it is prime and its reverse (910777541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145777019 - 2¹⁶ = 145711483 is a prime.

It is a super-2 number, since 2×145777019² = 42501878537052722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145777069) 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 as a sum of consecutive naturals, namely, 72888509 + 72888510.

It is an arithmetic number, because the mean of its divisors is an integer number (72888510).

Almost surely, 2^145777019 is an apocalyptic number.

145777019 is a deficient number, since it is larger than the sum of its proper divisors (1).

145777019 is an equidigital number, since it uses as much as digits as its factorization.

145777019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 41.

The square root of 145777019 is about 12073.8154284385. The cubic root of 145777019 is about 526.2955383999.

The spelling of 145777019 in words is "one hundred forty-five million, seven hundred seventy-seven thousand, nineteen".