1125455172 has 24 divisors (see below), whose sum is σ = 2659305600. Its totient is φ = 370402656.

The previous prime is 1125455143. The next prime is 1125455239. The reversal of 1125455172 is 2715545211.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 592647 + ... + 594542.

It is an arithmetic number, because the mean of its divisors is an integer number (110804400).

Almost surely, 2^1125455172 is an apocalyptic number.

1125455172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1125455172 is an abundant number, since it is smaller than the sum of its proper divisors (1533850428).

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

1125455172 is a wasteful number, since it uses less digits than its factorization.

1125455172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187275 (or 1187273 counting only the distinct ones).

The product of its digits is 14000, while the sum is 33.

The square root of 1125455172 is about 33547.8042798631. The cubic root of 1125455172 is about 1040.1821586744.

The spelling of 1125455172 in words is "one billion, one hundred twenty-five million, four hundred fifty-five thousand, one hundred seventy-two".