1125387625 has 16 divisors (see below), whose sum is σ = 1408307472. Its totient is φ = 897859200.

The previous prime is 1125387617. The next prime is 1125387629. The reversal of 1125387625 is 5267835211.

It can be written as a sum of positive squares in 8 ways, for example, as 238300969 + 887086656 = 15437^2 + 29784^2 .

It is not a de Polignac number, because 1125387625 - 2³ = 1125387617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125387629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34557 + ... + 58693.

It is an arithmetic number, because the mean of its divisors is an integer number (88019217).

Almost surely, 2^1125387625 is an apocalyptic number.

It is an amenable number.

1125387625 is a deficient number, since it is larger than the sum of its proper divisors (282919847).

1125387625 is an equidigital number, since it uses as much as digits as its factorization.

1125387625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24525 (or 24515 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 1125387625 is about 33546.7975371719. The cubic root of 1125387625 is about 1040.1613485490.

The spelling of 1125387625 in words is "one billion, one hundred twenty-five million, three hundred eighty-seven thousand, six hundred twenty-five".