1125061380 has 96 divisors (see below), whose sum is σ = 3620937600. Its totient is φ = 289666944.

The previous prime is 1125061373. The next prime is 1125061381. The reversal of 1125061380 is 831605211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1125061381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20262 + ... + 51581.

It is an arithmetic number, because the mean of its divisors is an integer number (37718100).

Almost surely, 2^1125061380 is an apocalyptic number.

1125061380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125061380 is an abundant number, since it is smaller than the sum of its proper divisors (2495876220).

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

1125061380 is a wasteful number, since it uses less digits than its factorization.

1125061380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71890 (or 71882 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1125061380 is about 33541.9346490330. The cubic root of 1125061380 is about 1040.0608260775.

Adding to 1125061380 its reverse (831605211), we get a palindrome (1956666591).

The spelling of 1125061380 in words is "one billion, one hundred twenty-five million, sixty-one thousand, three hundred eighty".