145984193 has 2 divisors, whose sum is σ = 145984194. Its totient is φ = 145984192.

The previous prime is 145984187. The next prime is 145984213. The reversal of 145984193 is 391489541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131974144 + 14010049 = 11488^2 + 3743^2 .

It is a cyclic number.

It is not a de Polignac number, because 145984193 - 2¹⁶ = 145918657 is a prime.

It is a super-3 number, since 3×145984193³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (145984123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72992096 + 72992097.

It is an arithmetic number, because the mean of its divisors is an integer number (72992097).

Almost surely, 2^145984193 is an apocalyptic number.

It is an amenable number.

145984193 is a deficient number, since it is larger than the sum of its proper divisors (1).

145984193 is an equidigital number, since it uses as much as digits as its factorization.

145984193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 145984193 is about 12082.3918575752. The cubic root of 145984193 is about 526.5447389507.

The spelling of 145984193 in words is "one hundred forty-five million, nine hundred eighty-four thousand, one hundred ninety-three".