1005425541 has 10 divisors (see below), whose sum is σ = 1501932102. Its totient is φ = 670283640.

The previous prime is 1005425537. The next prime is 1005425579. The reversal of 1005425541 is 1455245001.

1005425541 is a `hidden beast` number, since 100 + 5 + 4 + 2 + 554 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 733868100 + 271557441 = 27090^2 + 16479^2 .

It is not a de Polignac number, because 1005425541 - 2² = 1005425537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005425581) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6206250 + ... + 6206411.

Almost surely, 2^1005425541 is an apocalyptic number.

It is an amenable number.

1005425541 is a deficient number, since it is larger than the sum of its proper divisors (496506561).

1005425541 is an equidigital number, since it uses as much as digits as its factorization.

1005425541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412673 (or 12412664 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1005425541 is about 31708.4458937993. The cubic root of 1005425541 is about 1001.8052527680.

The spelling of 1005425541 in words is "one billion, five million, four hundred twenty-five thousand, five hundred forty-one".