145936189 has 16 divisors (see below), whose sum is σ = 175426560. Its totient is φ = 118759680.

The previous prime is 145936183. The next prime is 145936199. The reversal of 145936189 is 981639541.

It is a cyclic number.

It is not a de Polignac number, because 145936189 - 2³ = 145936181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145936181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5157 + ... + 17845.

It is an arithmetic number, because the mean of its divisors is an integer number (10964160).

Almost surely, 2^145936189 is an apocalyptic number.

It is an amenable number.

145936189 is a deficient number, since it is larger than the sum of its proper divisors (29490371).

145936189 is a wasteful number, since it uses less digits than its factorization.

145936189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780.

The product of its digits is 233280, while the sum is 46.

The square root of 145936189 is about 12080.4051670463. The cubic root of 145936189 is about 526.4870180332.

The spelling of 145936189 in words is "one hundred forty-five million, nine hundred thirty-six thousand, one hundred eighty-nine".