1045253020 has 24 divisors (see below), whose sum is σ = 2508607584. Its totient is φ = 358372416.

The previous prime is 1045252991. The next prime is 1045253047. The reversal of 1045253020 is 203525401.

It is a junction number, because it is equal to n+sod(n) for n = 1045252982 and 1045253000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3732907 + ... + 3733186.

It is an arithmetic number, because the mean of its divisors is an integer number (104525316).

Almost surely, 2^1045253020 is an apocalyptic number.

1045253020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045253020 is an abundant number, since it is smaller than the sum of its proper divisors (1463354564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045253020 is a wasteful number, since it uses less digits than its factorization.

1045253020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7466109 (or 7466107 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1045253020 is about 32330.3730259952. The cubic root of 1045253020 is about 1014.8623560589.

Adding to 1045253020 its reverse (203525401), we get a palindrome (1248778421).

The spelling of 1045253020 in words is "one billion, forty-five million, two hundred fifty-three thousand, twenty".