285225712149 has 40 divisors (see below), whose sum is σ = 443824052000. Its totient is φ = 162925142688.

The previous prime is 285225712141. The next prime is 285225712181. The reversal of 285225712149 is 941217522582.

It is not a de Polignac number, because 285225712149 - 2³ = 285225712141 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 285225712098 and 285225712107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285225712141) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25197639 + ... + 25208955.

It is an arithmetic number, because the mean of its divisors is an integer number (11095601300).

Almost surely, 2^285225712149 is an apocalyptic number.

It is an amenable number.

285225712149 is a deficient number, since it is larger than the sum of its proper divisors (158598339851).

285225712149 is an equidigital number, since it uses as much as digits as its factorization.

285225712149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14847 (or 14826 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The spelling of 285225712149 in words is "two hundred eighty-five billion, two hundred twenty-five million, seven hundred twelve thousand, one hundred forty-nine".