145716189 has 8 divisors (see below), whose sum is σ = 195592800. Its totient is φ = 96491856.

The previous prime is 145716167. The next prime is 145716209. The reversal of 145716189 is 981617541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145716189 - 2¹¹ = 145714141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145716189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145716119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162547 + ... + 163440.

It is an arithmetic number, because the mean of its divisors is an integer number (24449100).

Almost surely, 2^145716189 is an apocalyptic number.

It is an amenable number.

145716189 is a deficient number, since it is larger than the sum of its proper divisors (49876611).

145716189 is a wasteful number, since it uses less digits than its factorization.

145716189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326139.

The product of its digits is 60480, while the sum is 42.

The square root of 145716189 is about 12071.2960778866. The cubic root of 145716189 is about 526.2223238154. Note that the first 3 decimals are identical.

The spelling of 145716189 in words is "one hundred forty-five million, seven hundred sixteen thousand, one hundred eighty-nine".