1125125403 has 16 divisors (see below), whose sum is σ = 1537909632. Its totient is φ = 731240000.

The previous prime is 1125125369. The next prime is 1125125423. The reversal of 1125125403 is 3045215211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1125125403 - 2¹² = 1125121307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125125423) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 220228 + ... + 225278.

It is an arithmetic number, because the mean of its divisors is an integer number (96119352).

Almost surely, 2^1125125403 is an apocalyptic number.

1125125403 is a deficient number, since it is larger than the sum of its proper divisors (412784229).

1125125403 is a wasteful number, since it uses less digits than its factorization.

1125125403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1125125403 is about 33542.8890079552. The cubic root of 1125125403 is about 1040.0805543497.

The spelling of 1125125403 in words is "one billion, one hundred twenty-five million, one hundred twenty-five thousand, four hundred three".