1125199936 has 63 divisors (see below), whose sum is σ = 2601703839. Its totient is φ = 481423488.

The previous prime is 1125199891. The next prime is 1125199937. The reversal of 1125199936 is 6399915211.

It is a happy number.

The square root of 1125199936 is 33544.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (1125199937) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1878165 + ... + 1878763.

Almost surely, 2^1125199936 is an apocalyptic number.

1125199936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1125199936 is the 33544-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125199936

1125199936 is an abundant number, since it is smaller than the sum of its proper divisors (1476503903).

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

1125199936 is an frugal number, since it uses more digits than its factorization.

1125199936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 608 counting only the distinct ones).

The product of its digits is 131220, while the sum is 46.

The cubic root of 1125199936 is about 1040.1035202674.

The spelling of 1125199936 in words is "one billion, one hundred twenty-five million, one hundred ninety-nine thousand, nine hundred thirty-six".