145184471 has 8 divisors (see below), whose sum is σ = 153997200. Its totient is φ = 136402048.

The previous prime is 145184447. The next prime is 145184477. The reversal of 145184471 is 174481541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145184471 is a prime.

It is a super-3 number, since 3×145184471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145184477) 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, 2705 + ... + 17253.

It is an arithmetic number, because the mean of its divisors is an integer number (19249650).

Almost surely, 2^145184471 is an apocalyptic number.

145184471 is a deficient number, since it is larger than the sum of its proper divisors (8812729).

145184471 is a wasteful number, since it uses less digits than its factorization.

145184471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15153.

The product of its digits is 17920, while the sum is 35.

The square root of 145184471 is about 12049.2518854907. The cubic root of 145184471 is about 525.5814824025.

The spelling of 145184471 in words is "one hundred forty-five million, one hundred eighty-four thousand, four hundred seventy-one".