286146139 has 2 divisors, whose sum is σ = 286146140. Its totient is φ = 286146138.

The previous prime is 286146131. The next prime is 286146143. The reversal of 286146139 is 931641682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 286146139 - 2³ = 286146131 is a prime.

It is a super-2 number, since 2×286146139² = 163759225729214642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (286146131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143073069 + 143073070.

It is an arithmetic number, because the mean of its divisors is an integer number (143073070).

Almost surely, 2^286146139 is an apocalyptic number.

286146139 is a deficient number, since it is larger than the sum of its proper divisors (1).

286146139 is an equidigital number, since it uses as much as digits as its factorization.

286146139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 286146139 is about 16915.8546635989. The cubic root of 286146139 is about 658.9654276356.

The spelling of 286146139 in words is "two hundred eighty-six million, one hundred forty-six thousand, one hundred thirty-nine".