145852506 has 24 divisors (see below), whose sum is σ = 316708704. Its totient is φ = 48510600.

The previous prime is 145852463. The next prime is 145852519. The reversal of 145852506 is 605258541.

145852506 is a `hidden beast` number, since 145 + 8 + 5 + 2 + 506 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270 + ... + 17081.

It is an arithmetic number, because the mean of its divisors is an integer number (13196196).

Almost surely, 2^145852506 is an apocalyptic number.

145852506 is an abundant number, since it is smaller than the sum of its proper divisors (170856198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145852506 is a wasteful number, since it uses less digits than its factorization.

145852506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17826 (or 17823 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 145852506 is about 12076.9410862188. The cubic root of 145852506 is about 526.3863657381.

The spelling of 145852506 in words is "one hundred forty-five million, eight hundred fifty-two thousand, five hundred six".