1125125601 has 16 divisors (see below), whose sum is σ = 1520342208. Its totient is φ = 740044800.

The previous prime is 1125125597. The next prime is 1125125627. The reversal of 1125125601 is 1065215211.

It is not a de Polignac number, because 1125125601 - 2² = 1125125597 is a prime.

It is a super-2 number, since 2×1125125601² = 2531815236051222402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125115601) 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, 90481 + ... + 102161.

It is an arithmetic number, because the mean of its divisors is an integer number (95021388).

Almost surely, 2^1125125601 is an apocalyptic number.

It is an amenable number.

1125125601 is a deficient number, since it is larger than the sum of its proper divisors (395216607).

1125125601 is a wasteful number, since it uses less digits than its factorization.

1125125601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12112.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1125125601 is about 33542.8919594003. The cubic root of 1125125601 is about 1040.0806153609.

The spelling of 1125125601 in words is "one billion, one hundred twenty-five million, one hundred twenty-five thousand, six hundred one".