145632985 has 8 divisors (see below), whose sum is σ = 175530816. Its totient is φ = 115992240.

The previous prime is 145632973. The next prime is 145632989. The reversal of 145632985 is 589236541.

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

It is not a de Polignac number, because 145632985 - 2¹³ = 145624793 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145632989) 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, 63021 + ... + 65290.

It is an arithmetic number, because the mean of its divisors is an integer number (21941352).

Almost surely, 2^145632985 is an apocalyptic number.

It is an amenable number.

145632985 is a deficient number, since it is larger than the sum of its proper divisors (29897831).

145632985 is a wasteful number, since it uses less digits than its factorization.

145632985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128543.

The product of its digits is 259200, while the sum is 43.

The square root of 145632985 is about 12067.8492284251. The cubic root of 145632985 is about 526.1221470295.

The spelling of 145632985 in words is "one hundred forty-five million, six hundred thirty-two thousand, nine hundred eighty-five".