285441131 has 2 divisors, whose sum is σ = 285441132. Its totient is φ = 285441130.

The previous prime is 285441089. The next prime is 285441137. The reversal of 285441131 is 131144582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285441131 - 2¹⁰ = 285440107 is a prime.

It is a super-2 number, since 2×285441131² = 162953278533118322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 285441094 and 285441103.

It is not a weakly prime, because it can be changed into another prime (285441137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142720565 + 142720566.

It is an arithmetic number, because the mean of its divisors is an integer number (142720566).

Almost surely, 2^285441131 is an apocalyptic number.

285441131 is a deficient number, since it is larger than the sum of its proper divisors (1).

285441131 is an equidigital number, since it uses as much as digits as its factorization.

285441131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 29.

The square root of 285441131 is about 16895.0031370225. The cubic root of 285441131 is about 658.4237953491.

The spelling of 285441131 in words is "two hundred eighty-five million, four hundred forty-one thousand, one hundred thirty-one".