1125021696 has 96 divisors (see below), whose sum is σ = 3042748800. Its totient is φ = 369582080.

The previous prime is 1125021683. The next prime is 1125021697. The reversal of 1125021696 is 6961205211.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125021697) 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, 434935 + ... + 437513.

It is an arithmetic number, because the mean of its divisors is an integer number (31695300).

Almost surely, 2^1125021696 is an apocalyptic number.

1125021696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125021696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521374400).

1125021696 is an abundant number, since it is smaller than the sum of its proper divisors (1917727104).

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

1125021696 is an equidigital number, since it uses as much as digits as its factorization.

1125021696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675 (or 2655 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1125021696 is about 33541.3430858098. The cubic root of 1125021696 is about 1040.0485973346.

The spelling of 1125021696 in words is "one billion, one hundred twenty-five million, twenty-one thousand, six hundred ninety-six".