1260188487 has 48 divisors (see below), whose sum is σ = 1928509440. Its totient is φ = 792058176.

The previous prime is 1260188477. The next prime is 1260188507. The reversal of 1260188487 is 7848810621.

It is not a de Polignac number, because 1260188487 - 2⁸ = 1260188231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260188407) 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 in 47 ways as a sum of consecutive naturals, for example, 1436493 + ... + 1437369.

It is an arithmetic number, because the mean of its divisors is an integer number (40177280).

Almost surely, 2^1260188487 is an apocalyptic number.

1260188487 is a deficient number, since it is larger than the sum of its proper divisors (668320953).

1260188487 is a wasteful number, since it uses less digits than its factorization.

1260188487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 1260188487 is about 35499.1336091460. The cubic root of 1260188487 is about 1080.1361531023.

The spelling of 1260188487 in words is "one billion, two hundred sixty million, one hundred eighty-eight thousand, four hundred eighty-seven".