1125415523 has 6 divisors (see below), whose sum is σ = 1141048764. Its totient is φ = 1109993616.

The previous prime is 1125415513. The next prime is 1125415531. The reversal of 1125415523 is 3255145211.

It is a de Polignac number, because none of the positive numbers 2^k-1125415523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125415513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100265 + ... + 110922.

It is an arithmetic number, because the mean of its divisors is an integer number (190174794).

Almost surely, 2^1125415523 is an apocalyptic number.

1125415523 is a deficient number, since it is larger than the sum of its proper divisors (15633241).

1125415523 is an frugal number, since it uses more digits than its factorization.

1125415523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211333 (or 211260 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 1125415523 is about 33547.2133417964. The cubic root of 1125415523 is about 1040.1699435672.

The spelling of 1125415523 in words is "one billion, one hundred twenty-five million, four hundred fifteen thousand, five hundred twenty-three".