145479171 has 8 divisors (see below), whose sum is σ = 194060560. Its totient is φ = 96941952.

The previous prime is 145479137. The next prime is 145479203. The reversal of 145479171 is 171974541.

It is a happy number.

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

It is not a de Polignac number, because 145479171 - 2⁶ = 145479107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145479101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2386 + ... + 17223.

It is an arithmetic number, because the mean of its divisors is an integer number (24257570).

Almost surely, 2^145479171 is an apocalyptic number.

145479171 is a deficient number, since it is larger than the sum of its proper divisors (48581389).

145479171 is a wasteful number, since it uses less digits than its factorization.

145479171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22085.

The product of its digits is 35280, while the sum is 39.

The square root of 145479171 is about 12061.4746610852. The cubic root of 145479171 is about 525.9368559958.

The spelling of 145479171 in words is "one hundred forty-five million, four hundred seventy-nine thousand, one hundred seventy-one".