1123653125 has 48 divisors (see below), whose sum is σ = 1657893888. Its totient is φ = 745200000.

The previous prime is 1123653079. The next prime is 1123653133. The reversal of 1123653125 is 5213563211.

It is not a de Polignac number, because 1123653125 - 2⁸ = 1123652869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 677297 + ... + 678953.

It is an arithmetic number, because the mean of its divisors is an integer number (34539456).

Almost surely, 2^1123653125 is an apocalyptic number.

It is an amenable number.

1123653125 is a deficient number, since it is larger than the sum of its proper divisors (534240763).

1123653125 is an frugal number, since it uses more digits than its factorization.

1123653125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1700 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 1123653125 is about 33520.9356223838. The cubic root of 1123653125 is about 1039.6266920157.

The spelling of 1123653125 in words is "one billion, one hundred twenty-three million, six hundred fifty-three thousand, one hundred twenty-five".