287134450157 has 2 divisors, whose sum is σ = 287134450158. Its totient is φ = 287134450156.

The previous prime is 287134450151. The next prime is 287134450171. The reversal of 287134450157 is 751054431782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189202380676 + 97932069481 = 434974^2 + 312941^2 .

It is a cyclic number.

It is not a de Polignac number, because 287134450157 - 2³⁰ = 286060708333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287134450151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143567225078 + 143567225079.

It is an arithmetic number, because the mean of its divisors is an integer number (143567225079).

Almost surely, 2^287134450157 is an apocalyptic number.

It is an amenable number.

287134450157 is a deficient number, since it is larger than the sum of its proper divisors (1).

287134450157 is an equidigital number, since it uses as much as digits as its factorization.

287134450157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 287134450157 in words is "two hundred eighty-seven billion, one hundred thirty-four million, four hundred fifty thousand, one hundred fifty-seven".