1516240287 has 24 divisors (see below), whose sum is σ = 2292645888. Its totient is φ = 964429200.

The previous prime is 1516240213. The next prime is 1516240307. The reversal of 1516240287 is 7820426151.

1516240287 is a `hidden beast` number, since 1 + 5 + 1 + 624 + 0 + 28 + 7 = 666.

It is not a de Polignac number, because 1516240287 - 2¹¹ = 1516238239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516240207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18463 + ... + 58080.

It is an arithmetic number, because the mean of its divisors is an integer number (95526912).

Almost surely, 2^1516240287 is an apocalyptic number.

1516240287 is a deficient number, since it is larger than the sum of its proper divisors (776405601).

1516240287 is a wasteful number, since it uses less digits than its factorization.

1516240287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76651 (or 76648 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1516240287 is about 38938.9302241343. The cubic root of 1516240287 is about 1148.8306417324.

The spelling of 1516240287 in words is "one billion, five hundred sixteen million, two hundred forty thousand, two hundred eighty-seven".