1125500101 has 16 divisors (see below), whose sum is σ = 1292987520. Its totient is φ = 969693120.

The previous prime is 1125500099. The next prime is 1125500153. The reversal of 1125500101 is 1010055211.

It is not a de Polignac number, because 1125500101 - 2¹ = 1125500099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125504101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7171 + ... + 47983.

It is an arithmetic number, because the mean of its divisors is an integer number (80811720).

Almost surely, 2^1125500101 is an apocalyptic number.

1125500101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1125500101 is a deficient number, since it is larger than the sum of its proper divisors (167487419).

1125500101 is a wasteful number, since it uses less digits than its factorization.

1125500101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40956.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 1125500101 is about 33548.4738997171. The cubic root of 1125500101 is about 1040.1960001031.

Adding to 1125500101 its reverse (1010055211), we get a palindrome (2135555312).

The spelling of 1125500101 in words is "one billion, one hundred twenty-five million, five hundred thousand, one hundred one".