286172145 has 48 divisors (see below), whose sum is σ = 586460160. Its totient is φ = 126306432.

The previous prime is 286172137. The next prime is 286172177. The reversal of 286172145 is 541271682.

286172145 is a `hidden beast` number, since 28 + 617 + 2 + 14 + 5 = 666.

It is not a de Polignac number, because 286172145 - 2³ = 286172137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6529 + ... + 24798.

It is an arithmetic number, because the mean of its divisors is an integer number (12217920).

Almost surely, 2^286172145 is an apocalyptic number.

It is an amenable number.

286172145 is an abundant number, since it is smaller than the sum of its proper divisors (300288015).

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

286172145 is a wasteful number, since it uses less digits than its factorization.

286172145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31374 (or 31371 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 286172145 is about 16916.6233332778. The cubic root of 286172145 is about 658.9853900877.

The spelling of 286172145 in words is "two hundred eighty-six million, one hundred seventy-two thousand, one hundred forty-five".