1005210545 has 16 divisors (see below), whose sum is σ = 1225228032. Its totient is φ = 791555520.

The previous prime is 1005210533. The next prime is 1005210551. The reversal of 1005210545 is 5450125001.

It is a happy number.

It is not a de Polignac number, because 1005210545 - 2⁴ = 1005210529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005210545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258284 + ... + 262146.

It is an arithmetic number, because the mean of its divisors is an integer number (76576752).

Almost surely, 2^1005210545 is an apocalyptic number.

It is an amenable number.

1005210545 is a deficient number, since it is larger than the sum of its proper divisors (220017487).

1005210545 is an equidigital number, since it uses as much as digits as its factorization.

1005210545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1005210545 is about 31705.0555117003. The cubic root of 1005210545 is about 1001.7338403934.

Adding to 1005210545 its reverse (5450125001), we get a palindrome (6455335546).

The spelling of 1005210545 in words is "one billion, five million, two hundred ten thousand, five hundred forty-five".