1081250084 has 6 divisors (see below), whose sum is σ = 1892187654. Its totient is φ = 540625040.

The previous prime is 1081250077. The next prime is 1081250089. The reversal of 1081250084 is 4800521801.

It can be written as a sum of positive squares in only one way, i.e., 954192100 + 127057984 = 30890^2 + 11272^2 .

It is not an unprimeable number, because it can be changed into a prime (1081250089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135156257 + ... + 135156264.

It is an arithmetic number, because the mean of its divisors is an integer number (315364609).

Almost surely, 2^1081250084 is an apocalyptic number.

It is an amenable number.

1081250084 is a deficient number, since it is larger than the sum of its proper divisors (810937570).

1081250084 is a wasteful number, since it uses less digits than its factorization.

1081250084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270312525 (or 270312523 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 1081250084 is about 32882.3673721951. The cubic root of 1081250084 is about 1026.3812697374.

Adding to 1081250084 its reverse (4800521801), we get a palindrome (5881771885).

The spelling of 1081250084 in words is "one billion, eighty-one million, two hundred fifty thousand, eighty-four".