287283136144 has 45 divisors (see below), whose sum is σ = 568905385251. Its totient is φ = 140536053600.

The previous prime is 287283136103. The next prime is 287283136163. The reversal of 287283136144 is 441631382782.

The square root of 287283136144 is 535988.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 100764319 + ... + 100767169.

Almost surely, 2^287283136144 is an apocalyptic number.

287283136144 is the 535988-th square number.

It is an amenable number.

287283136144 is a deficient number, since it is larger than the sum of its proper divisors (281622249107).

287283136144 is an frugal number, since it uses more digits than its factorization.

287283136144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804 (or 2900 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

Multiplying 287283136144 by its sum of digits (49), we get a square (14076873671056 = 3751916²).

The spelling of 287283136144 in words is "two hundred eighty-seven billion, two hundred eighty-three million, one hundred thirty-six thousand, one hundred forty-four".