1005450545 has 32 divisors (see below), whose sum is σ = 1351810944. Its totient is φ = 711692800.

The previous prime is 1005450541. The next prime is 1005450557. The reversal of 1005450545 is 5450545001.

It is a happy number.

It is not a de Polignac number, because 1005450545 - 2² = 1005450541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1005450541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380549 + ... + 383181.

It is an arithmetic number, because the mean of its divisors is an integer number (42244092).

Almost surely, 2^1005450545 is an apocalyptic number.

It is an amenable number.

1005450545 is a deficient number, since it is larger than the sum of its proper divisors (346360399).

1005450545 is a wasteful number, since it uses less digits than its factorization.

1005450545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 1005450545 is about 31708.8401711573. The cubic root of 1005450545 is about 1001.8135573548.

Adding to 1005450545 its reverse (5450545001), we get a palindrome (6455995546).

The spelling of 1005450545 in words is "one billion, five million, four hundred fifty thousand, five hundred forty-five".