1155245125 has 24 divisors (see below), whose sum is σ = 1521680472. Its totient is φ = 875520000.

The previous prime is 1155245123. The next prime is 1155245137. The reversal of 1155245125 is 5215425511.

1155245125 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34468641 + 1120776484 = 5871^2 + 33478^2 .

It is not a de Polignac number, because 1155245125 - 2¹ = 1155245123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155245123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32325 + ... + 57925.

It is an arithmetic number, because the mean of its divisors is an integer number (63403353).

Almost surely, 2^1155245125 is an apocalyptic number.

It is an amenable number.

1155245125 is a deficient number, since it is larger than the sum of its proper divisors (366435347).

1155245125 is an equidigital number, since it uses as much as digits as its factorization.

1155245125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25654 (or 25625 counting only the distinct ones).

The product of its digits is 10000, while the sum is 31.

The square root of 1155245125 is about 33988.8970841950. The cubic root of 1155245125 is about 1049.2799674272.

The spelling of 1155245125 in words is "one billion, one hundred fifty-five million, two hundred forty-five thousand, one hundred twenty-five".