145506585 has 16 divisors (see below), whose sum is σ = 266069376. Its totient is φ = 66517248.

The previous prime is 145506551. The next prime is 145506589. The reversal of 145506585 is 585605541.

It is not a de Polignac number, because 145506585 - 2¹¹ = 145504537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145506589) 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, 692784 + ... + 692993.

It is an arithmetic number, because the mean of its divisors is an integer number (16629336).

Almost surely, 2^145506585 is an apocalyptic number.

145506585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145506585 is a deficient number, since it is larger than the sum of its proper divisors (120562791).

145506585 is a wasteful number, since it uses less digits than its factorization.

145506585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385792.

The product of its (nonzero) digits is 120000, while the sum is 39.

The square root of 145506585 is about 12062.6110357584. The cubic root of 145506585 is about 525.9698896536.

The spelling of 145506585 in words is "one hundred forty-five million, five hundred six thousand, five hundred eighty-five".