1287499848 has 32 divisors (see below), whose sum is σ = 3226456800. Its totient is φ = 428139008.

The previous prime is 1287499847. The next prime is 1287499859. The reversal of 1287499848 is 8489947821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1287499791 and 1287499800.

It is not an unprimeable number, because it can be changed into a prime (1287499847) 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, 53961 + ... + 74072.

It is an arithmetic number, because the mean of its divisors is an integer number (100826775).

Almost surely, 2^1287499848 is an apocalyptic number.

It is an amenable number.

1287499848 is an abundant number, since it is smaller than the sum of its proper divisors (1938956952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1287499848 is a wasteful number, since it uses less digits than its factorization.

1287499848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128461 (or 128457 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 60.

The square root of 1287499848 is about 35881.7481179499. The cubic root of 1287499848 is about 1087.8835141473.

The spelling of 1287499848 in words is "one billion, two hundred eighty-seven million, four hundred ninety-nine thousand, eight hundred forty-eight".