145877219 has 2 divisors, whose sum is σ = 145877220. Its totient is φ = 145877218.

The previous prime is 145877209. The next prime is 145877297. The reversal of 145877219 is 912778541.

145877219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145877219 - 2⁴ = 145877203 is a prime.

It is a super-2 number, since 2×145877219² = 42560326046347922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145877219.

It is not a weakly prime, because it can be changed into another prime (145877209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72938609 + 72938610.

It is an arithmetic number, because the mean of its divisors is an integer number (72938610).

Almost surely, 2^145877219 is an apocalyptic number.

145877219 is a deficient number, since it is larger than the sum of its proper divisors (1).

145877219 is an equidigital number, since it uses as much as digits as its factorization.

145877219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 44.

The square root of 145877219 is about 12077.9641910382. The cubic root of 145877219 is about 526.4160940620.

The spelling of 145877219 in words is "one hundred forty-five million, eight hundred seventy-seven thousand, two hundred nineteen".