287144430130 has 32 divisors (see below), whose sum is σ = 521684927280. Its totient is φ = 113785896960.

The previous prime is 287144430119. The next prime is 287144430137. The reversal of 287144430130 is 31034441782.

It can be written as a sum of positive squares in 8 ways, for example, as 249087833569 + 38056596561 = 499087^2 + 195081^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 287144430130.

It is not an unprimeable number, because it can be changed into a prime (287144430137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8355142 + ... + 8389438.

Almost surely, 2^287144430130 is an apocalyptic number.

287144430130 is a deficient number, since it is larger than the sum of its proper divisors (234540497150).

287144430130 is a wasteful number, since it uses less digits than its factorization.

287144430130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 287144430130 in words is "two hundred eighty-seven billion, one hundred forty-four million, four hundred thirty thousand, one hundred thirty".