1125008780 has 48 divisors (see below), whose sum is σ = 2704328256. Its totient is φ = 385102080.

The previous prime is 1125008749. The next prime is 1125008783. The reversal of 1125008780 is 878005211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1125008783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86462 + ... + 98618.

It is an arithmetic number, because the mean of its divisors is an integer number (56340172).

Almost surely, 2^1125008780 is an apocalyptic number.

1125008780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125008780 is an abundant number, since it is smaller than the sum of its proper divisors (1579319476).

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

1125008780 is a wasteful number, since it uses less digits than its factorization.

1125008780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834 (or 12832 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 1125008780 is about 33541.1505467538. The cubic root of 1125008780 is about 1040.0446171687.

The spelling of 1125008780 in words is "one billion, one hundred twenty-five million, eight thousand, seven hundred eighty".