1125030405 has 16 divisors (see below), whose sum is σ = 1800642240. Its totient is φ = 599818368.

The previous prime is 1125030397. The next prime is 1125030409. The reversal of 1125030405 is 5040305211.

It is not a de Polignac number, because 1125030405 - 2³ = 1125030397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125030409) 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, 42489 + ... + 63681.

It is an arithmetic number, because the mean of its divisors is an integer number (112540140).

Almost surely, 2^1125030405 is an apocalyptic number.

1125030405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1125030405 is a deficient number, since it is larger than the sum of its proper divisors (675611835).

1125030405 is a wasteful number, since it uses less digits than its factorization.

1125030405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24740.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1125030405 is about 33541.4729104135. The cubic root of 1125030405 is about 1040.0512810636.

Adding to 1125030405 its reverse (5040305211), we get a palindrome (6165335616).

The spelling of 1125030405 in words is "one billion, one hundred twenty-five million, thirty thousand, four hundred five".