1045212001 has 8 divisors (see below), whose sum is σ = 1074563240. Its totient is φ = 1015918848.

The previous prime is 1045211989. The next prime is 1045212011. The reversal of 1045212001 is 1002125401.

It can be written as a sum of positive squares in 4 ways, for example, as 525326400 + 519885601 = 22920^2 + 22801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1045212001 - 2⁷ = 1045211873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23335 + ... + 51331.

It is an arithmetic number, because the mean of its divisors is an integer number (134320405).

Almost surely, 2^1045212001 is an apocalyptic number.

It is an amenable number.

1045212001 is a deficient number, since it is larger than the sum of its proper divisors (29351239).

1045212001 is a wasteful number, since it uses less digits than its factorization.

1045212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29043.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1045212001 is about 32329.7386472579. The cubic root of 1045212001 is about 1014.8490804269.

Adding to 1045212001 its reverse (1002125401), we get a palindrome (2047337402).

The spelling of 1045212001 in words is "one billion, forty-five million, two hundred twelve thousand, one".