286040129 has 4 divisors (see below), whose sum is σ = 286421760. Its totient is φ = 285658500.

The previous prime is 286040123. The next prime is 286040159. The reversal of 286040129 is 921040682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-286040129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 286040095 and 286040104.

It is not an unprimeable number, because it can be changed into a prime (286040123) 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, 189689 + ... + 191190.

It is an arithmetic number, because the mean of its divisors is an integer number (71605440).

Almost surely, 2^286040129 is an apocalyptic number.

It is an amenable number.

286040129 is a deficient number, since it is larger than the sum of its proper divisors (381631).

286040129 is an equidigital number, since it uses as much as digits as its factorization.

286040129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381630.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 286040129 is about 16912.7209224300. The cubic root of 286040129 is about 658.8840408382.

The spelling of 286040129 in words is "two hundred eighty-six million, forty thousand, one hundred twenty-nine".