145004191 has 2 divisors, whose sum is σ = 145004192. Its totient is φ = 145004190.

The previous prime is 145004179. The next prime is 145004201. The reversal of 145004191 is 191400541.

145004191 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 145004191 - 2⁵ = 145004159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145004291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72502095 + 72502096.

It is an arithmetic number, because the mean of its divisors is an integer number (72502096).

Almost surely, 2^145004191 is an apocalyptic number.

145004191 is a deficient number, since it is larger than the sum of its proper divisors (1).

145004191 is an equidigital number, since it uses as much as digits as its factorization.

145004191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 145004191 is about 12041.7685993379. The cubic root of 145004191 is about 525.3638487607.

The spelling of 145004191 in words is "one hundred forty-five million, four thousand, one hundred ninety-one".