285075431 has 8 divisors (see below), whose sum is σ = 302997024. Its totient is φ = 267281920.

The previous prime is 285075407. The next prime is 285075457. The reversal of 285075431 is 134570582.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 285075431 - 2¹⁰ = 285074407 is a prime.

It is a super-2 number, since 2×285075431² = 162536002719671522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285075391 and 285075400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285071431) 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, 27410 + ... + 36351.

It is an arithmetic number, because the mean of its divisors is an integer number (37874628).

Almost surely, 2^285075431 is an apocalyptic number.

285075431 is a deficient number, since it is larger than the sum of its proper divisors (17921593).

285075431 is a wasteful number, since it uses less digits than its factorization.

285075431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64041.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 285075431 is about 16884.1769417405. The cubic root of 285075431 is about 658.1424898439.

The spelling of 285075431 in words is "two hundred eighty-five million, seventy-five thousand, four hundred thirty-one".