1042513245 has 24 divisors (see below), whose sum is σ = 1807781976. Its totient is φ = 555773568.

The previous prime is 1042513243. The next prime is 1042513259. The reversal of 1042513245 is 5423152401.

1042513245 is a `hidden beast` number, since 104 + 2 + 513 + 2 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 127449 + 1042385796 = 357^2 + 32286^2 .

It is not a de Polignac number, because 1042513245 - 2¹ = 1042513243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042513243) 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 23 ways as a sum of consecutive naturals, for example, 184279 + ... + 189851.

It is an arithmetic number, because the mean of its divisors is an integer number (75324249).

Almost surely, 2^1042513245 is an apocalyptic number.

1042513245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042513245 is a deficient number, since it is larger than the sum of its proper divisors (765268731).

1042513245 is a wasteful number, since it uses less digits than its factorization.

1042513245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741 (or 9738 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1042513245 is about 32287.9736899050. The cubic root of 1042513245 is about 1013.9748747903.

Adding to 1042513245 its reverse (5423152401), we get a palindrome (6465665646).

The spelling of 1042513245 in words is "one billion, forty-two million, five hundred thirteen thousand, two hundred forty-five".