1078487136 has 120 divisors (see below), whose sum is σ = 3186109080. Its totient is φ = 357875712.

The previous prime is 1078487087. The next prime is 1078487161. The reversal of 1078487136 is 6317848701.

It is a junction number, because it is equal to n+sod(n) for n = 1078487091 and 1078487100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 665335 + ... + 666953.

It is an arithmetic number, because the mean of its divisors is an integer number (26550909).

Almost surely, 2^1078487136 is an apocalyptic number.

1078487136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1078487136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593054540).

1078487136 is an abundant number, since it is smaller than the sum of its proper divisors (2107621944).

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

1078487136 is a wasteful number, since it uses less digits than its factorization.

1078487136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1078487136 is about 32840.3278911767. The cubic root of 1078487136 is about 1025.5062772783.

The spelling of 1078487136 in words is "one billion, seventy-eight million, four hundred eighty-seven thousand, one hundred thirty-six".