1287475484 has 24 divisors (see below), whose sum is σ = 2421231120. Its totient is φ = 596825856.

The previous prime is 1287475457. The next prime is 1287475489. The reversal of 1287475484 is 4845747821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287475489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136739 + ... + 145850.

It is an arithmetic number, because the mean of its divisors is an integer number (100884630).

Almost surely, 2^1287475484 is an apocalyptic number.

It is an amenable number.

1287475484 is a deficient number, since it is larger than the sum of its proper divisors (1133755636).

1287475484 is a wasteful number, since it uses less digits than its factorization.

1287475484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282677 (or 282675 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 50.

The square root of 1287475484 is about 35881.4086122605. The cubic root of 1287475484 is about 1087.8766519171.

The spelling of 1287475484 in words is "one billion, two hundred eighty-seven million, four hundred seventy-five thousand, four hundred eighty-four".