1145031245 has 8 divisors (see below), whose sum is σ = 1374322680. Its totient is φ = 915834880.

The previous prime is 1145031211. The next prime is 1145031259. The reversal of 1145031245 is 5421305411.

It can be written as a sum of positive squares in 4 ways, for example, as 581870884 + 563160361 = 24122^2 + 23731^2 .

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

It is not a de Polignac number, because 1145031245 - 2¹⁰ = 1145030221 is a prime.

It is a super-2 number, since 2×1145031245² = 2622193104052500050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6161 + ... + 48249.

It is an arithmetic number, because the mean of its divisors is an integer number (171790335).

Almost surely, 2^1145031245 is an apocalyptic number.

It is an amenable number.

1145031245 is a deficient number, since it is larger than the sum of its proper divisors (229291435).

1145031245 is an equidigital number, since it uses as much as digits as its factorization.

1145031245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47535.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1145031245 is about 33838.3103153807. The cubic root of 1145031245 is about 1046.1784725572.

Adding to 1145031245 its reverse (5421305411), we get a palindrome (6566336656).

The spelling of 1145031245 in words is "one billion, one hundred forty-five million, thirty-one thousand, two hundred forty-five".