1125921519938 has 8 divisors (see below), whose sum is σ = 1688955903180. Its totient is φ = 562936218880.

The previous prime is 1125921519929. The next prime is 1125921519997. The reversal of 1125921519938 is 8399151295211.

It can be written as a sum of positive squares in 2 ways, for example, as 1068459197569 + 57462322369 = 1033663^2 + 239713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1125921519938² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12213143 + ... + 12304986.

Almost surely, 2^{1125921519938} is an apocalyptic number.

1125921519938 is a deficient number, since it is larger than the sum of its proper divisors (563034383242).

1125921519938 is a wasteful number, since it uses less digits than its factorization.

1125921519938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24541092.

The product of its digits is 1749600, while the sum is 56.

The spelling of 1125921519938 in words is "one trillion, one hundred twenty-five billion, nine hundred twenty-one million, five hundred nineteen thousand, nine hundred thirty-eight".