285960131 has 4 divisors (see below), whose sum is σ = 290648064. Its totient is φ = 281272200.

The previous prime is 285960109. The next prime is 285960133. The reversal of 285960131 is 131069582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 285960131 - 2⁶ = 285960067 is a prime.

It is a super-2 number, since 2×285960131² = 163546393043074322, 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 = 285960091 and 285960100.

It is not an unprimeable number, because it can be changed into a prime (285960133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343875 + ... + 2343996.

It is an arithmetic number, because the mean of its divisors is an integer number (72662016).

Almost surely, 2^285960131 is an apocalyptic number.

285960131 is a deficient number, since it is larger than the sum of its proper divisors (4687933).

285960131 is an equidigital number, since it uses as much as digits as its factorization.

285960131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687932.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 285960131 is about 16910.3557325090. The cubic root of 285960131 is about 658.8226108560.

The spelling of 285960131 in words is "two hundred eighty-five million, nine hundred sixty thousand, one hundred thirty-one".