1125245005 has 8 divisors (see below), whose sum is σ = 1357291512. Its totient is φ = 895531008.

The previous prime is 1125245003. The next prime is 1125245047. The reversal of 1125245005 is 5005425211.

It can be written as a sum of positive squares in 4 ways, for example, as 253637476 + 871607529 = 15926^2 + 29523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125245005 - 2¹ = 1125245003 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 (1125245003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582064 + ... + 583993.

It is an arithmetic number, because the mean of its divisors is an integer number (169661439).

Almost surely, 2^1125245005 is an apocalyptic number.

It is an amenable number.

1125245005 is a deficient number, since it is larger than the sum of its proper divisors (232046507).

1125245005 is a wasteful number, since it uses less digits than its factorization.

1125245005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166255.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1125245005 is about 33544.6717825648. The cubic root of 1125245005 is about 1040.1174069253.

The spelling of 1125245005 in words is "one billion, one hundred twenty-five million, two hundred forty-five thousand, five".