1125386880 has 64 divisors (see below), whose sum is σ = 3587176800. Its totient is φ = 300102656.

The previous prime is 1125386839. The next prime is 1125386881. The reversal of 1125386880 is 886835211.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1125386880² = 2532991259352268800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1125386881) 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, 291150 + ... + 294989.

Almost surely, 2^1125386880 is an apocalyptic number.

1125386880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125386880 is an abundant number, since it is smaller than the sum of its proper divisors (2461789920).

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

1125386880 is an equidigital number, since it uses as much as digits as its factorization.

1125386880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586161 (or 586149 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 1125386880 is about 33546.7864332785. The cubic root of 1125386880 is about 1040.1611190220.

The spelling of 1125386880 in words is "one billion, one hundred twenty-five million, three hundred eighty-six thousand, eight hundred eighty".