1012887140 has 24 divisors (see below), whose sum is σ = 2131926720. Its totient is φ = 404228448.

The previous prime is 1012887137. The next prime is 1012887181. The reversal of 1012887140 is 417882101.

It is a junction number, because it is equal to n+sod(n) for n = 1012887097 and 1012887106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48902 + ... + 66461.

It is an arithmetic number, because the mean of its divisors is an integer number (88830280).

Almost surely, 2^1012887140 is an apocalyptic number.

1012887140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012887140 is an abundant number, since it is smaller than the sum of its proper divisors (1119039580).

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

1012887140 is a wasteful number, since it uses less digits than its factorization.

1012887140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115811 (or 115809 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 1012887140 is about 31825.8878902066. The cubic root of 1012887140 is about 1004.2773911716.

The spelling of 1012887140 in words is "one billion, twelve million, eight hundred eighty-seven thousand, one hundred forty".