1125105501 has 24 divisors (see below), whose sum is σ = 1709922720. Its totient is φ = 655926336.

The previous prime is 1125105497. The next prime is 1125105503. The reversal of 1125105501 is 1055015211.

It is not a de Polignac number, because 1125105501 - 2² = 1125105497 is a prime.

It is a super-2 number, since 2×1125105501² = 2531724776760922002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125105503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48766 + ... + 68031.

It is an arithmetic number, because the mean of its divisors is an integer number (71246780).

Almost surely, 2^1125105501 is an apocalyptic number.

It is an amenable number.

1125105501 is a deficient number, since it is larger than the sum of its proper divisors (584817219).

1125105501 is a wasteful number, since it uses less digits than its factorization.

1125105501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116845 (or 116832 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 1125105501 is about 33542.5923416781. The cubic root of 1125105501 is about 1040.0744217576.

The spelling of 1125105501 in words is "one billion, one hundred twenty-five million, one hundred five thousand, five hundred one".