1081525878 has 16 divisors (see below), whose sum is σ = 2403390960. Its totient is φ = 360508608.

The previous prime is 1081525871. The next prime is 1081525891. The reversal of 1081525878 is 8785251801.

1081525878 is a `hidden beast` number, since 10 + 8 + 1 + 52 + 587 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081525871) 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, 10014075 + ... + 10014182.

It is an arithmetic number, because the mean of its divisors is an integer number (150211935).

Almost surely, 2^1081525878 is an apocalyptic number.

1081525878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1081525878 is an abundant number, since it is smaller than the sum of its proper divisors (1321865082).

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

1081525878 is a wasteful number, since it uses less digits than its factorization.

1081525878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20028268 (or 20028262 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 45.

The square root of 1081525878 is about 32886.5607505558. The cubic root of 1081525878 is about 1026.4685285304.

The spelling of 1081525878 in words is "one billion, eighty-one million, five hundred twenty-five thousand, eight hundred seventy-eight".