1045313243 has 8 divisors (see below), whose sum is σ = 1126649328. Its totient is φ = 964109664.

The previous prime is 1045313237. The next prime is 1045313249. The reversal of 1045313243 is 3423135401.

It is an interprime number because it is at equal distance from previous prime (1045313237) and next prime (1045313249).

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 1045313243 - 2¹⁴ = 1045296859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045313249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16421 + ... + 48582.

It is an arithmetic number, because the mean of its divisors is an integer number (140831166).

Almost surely, 2^1045313243 is an apocalyptic number.

1045313243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1045313243 is a deficient number, since it is larger than the sum of its proper divisors (81336085).

1045313243 is a wasteful number, since it uses less digits than its factorization.

1045313243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66253.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1045313243 is about 32331.3043813577. The cubic root of 1045313243 is about 1014.8818463580.

Adding to 1045313243 its reverse (3423135401), we get a palindrome (4468448644).

The spelling of 1045313243 in words is "one billion, forty-five million, three hundred thirteen thousand, two hundred forty-three".