145544419 has 2 divisors, whose sum is σ = 145544420. Its totient is φ = 145544418.

The previous prime is 145544369. The next prime is 145544423. The reversal of 145544419 is 914445541.

145544419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145544419 - 2⁷ = 145544291 is a prime.

It is a super-2 number, since 2×145544419² = 42366355804095122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145544449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72772209 + 72772210.

It is an arithmetic number, because the mean of its divisors is an integer number (72772210).

Almost surely, 2^145544419 is an apocalyptic number.

145544419 is a deficient number, since it is larger than the sum of its proper divisors (1).

145544419 is an equidigital number, since it uses as much as digits as its factorization.

145544419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 145544419 is about 12064.1791680993. The cubic root of 145544419 is about 526.0154725169.

The spelling of 145544419 in words is "one hundred forty-five million, five hundred forty-four thousand, four hundred nineteen".