1005245541 has 24 divisors (see below), whose sum is σ = 1510928640. Its totient is φ = 643514976.

The previous prime is 1005245539. The next prime is 1005245543. The reversal of 1005245541 is 1455425001.

1005245541 is a `hidden beast` number, since 100 + 5 + 2 + 4 + 554 + 1 = 666.

1005245541 is a nontrivial binomial coefficient, being equal to C(44839, 2).

It is an interprime number because it is at equal distance from previous prime (1005245539) and next prime (1005245543).

It is not a de Polignac number, because 1005245541 - 2¹ = 1005245539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005245543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1 + ... + 44838.

It is an arithmetic number, because the mean of its divisors is an integer number (62955360).

Almost surely, 2^1005245541 is an apocalyptic number.

1005245541 is the 44838-th triangular number.

It is an amenable number.

1005245541 is a deficient number, since it is larger than the sum of its proper divisors (505683099).

1005245541 is a wasteful number, since it uses less digits than its factorization.

1005245541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44945 (or 44942 counting only the distinct ones).

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

The square root of 1005245541 is about 31705.6074062618. The cubic root of 1005245541 is about 1001.7454652451.

The spelling of 1005245541 in words is "one billion, five million, two hundred forty-five thousand, five hundred forty-one".