285545157 has 8 divisors (see below), whose sum is σ = 381079584. Its totient is φ = 190187088.

The previous prime is 285545153. The next prime is 285545171. The reversal of 285545157 is 751545582.

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

It is not a de Polignac number, because 285545157 - 2² = 285545153 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285545153) 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, 40263 + ... + 46820.

It is an arithmetic number, because the mean of its divisors is an integer number (47634948).

Almost surely, 2^285545157 is an apocalyptic number.

It is an amenable number.

285545157 is a deficient number, since it is larger than the sum of its proper divisors (95534427).

285545157 is a wasteful number, since it uses less digits than its factorization.

285545157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88179.

The product of its digits is 280000, while the sum is 42.

The square root of 285545157 is about 16898.0814591480. The cubic root of 285545157 is about 658.5037708296.

The spelling of 285545157 in words is "two hundred eighty-five million, five hundred forty-five thousand, one hundred fifty-seven".