145459171 has 16 divisors (see below), whose sum is σ = 171940608. Its totient is φ = 121312800.

The previous prime is 145459169. The next prime is 145459177. The reversal of 145459171 is 171954541.

It is a cyclic number.

It is not a de Polignac number, because 145459171 - 2¹ = 145459169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145459171.

It is not an unprimeable number, because it can be changed into a prime (145459177) 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, 20836 + ... + 26926.

It is an arithmetic number, because the mean of its divisors is an integer number (10746288).

Almost surely, 2^145459171 is an apocalyptic number.

145459171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145459171 is a deficient number, since it is larger than the sum of its proper divisors (26481437).

145459171 is a wasteful number, since it uses less digits than its factorization.

145459171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282.

The product of its digits is 25200, while the sum is 37.

The square root of 145459171 is about 12060.6455465701. The cubic root of 145459171 is about 525.9127535324.

It can be divided in two parts, 14545 and 9171, that added together give a square (23716 = 154²).

The spelling of 145459171 in words is "one hundred forty-five million, four hundred fifty-nine thousand, one hundred seventy-one".