1123920725 has 12 divisors (see below), whose sum is σ = 1394077440. Its totient is φ = 898868400.

The previous prime is 1123920689. The next prime is 1123920731. The reversal of 1123920725 is 5270293211.

It is not a de Polignac number, because 1123920725 - 2¹⁶ = 1123855189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123920691 and 1123920700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163916 + ... + 170634.

It is an arithmetic number, because the mean of its divisors is an integer number (116173120).

Almost surely, 2^1123920725 is an apocalyptic number.

It is an amenable number.

1123920725 is a deficient number, since it is larger than the sum of its proper divisors (270156715).

1123920725 is an equidigital number, since it uses as much as digits as its factorization.

1123920725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13420 (or 13415 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1123920725 is about 33524.9269201291. The cubic root of 1123920725 is about 1039.7092151166.

The spelling of 1123920725 in words is "one billion, one hundred twenty-three million, nine hundred twenty thousand, seven hundred twenty-five".