1125005411 has 4 divisors (see below), whose sum is σ = 1125821424. Its totient is φ = 1124189400.

The previous prime is 1125005347. The next prime is 1125005423. The reversal of 1125005411 is 1145005211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125005411 - 2⁶ = 1125005347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125005711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405935 + ... + 408696.

It is an arithmetic number, because the mean of its divisors is an integer number (281455356).

Almost surely, 2^1125005411 is an apocalyptic number.

1125005411 is a deficient number, since it is larger than the sum of its proper divisors (816013).

1125005411 is an equidigital number, since it uses as much as digits as its factorization.

1125005411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816012.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1125005411 is about 33541.1003248254. The cubic root of 1125005411 is about 1040.0435789801.

Subtracting from 1125005411 its product of nonzero digits (200), we obtain a palindrome (1125005211).

The spelling of 1125005411 in words is "one billion, one hundred twenty-five million, five thousand, four hundred eleven".