1145415245 has 24 divisors (see below), whose sum is σ = 1503210312. Its totient is φ = 837408000.

The previous prime is 1145415223. The next prime is 1145415251. The reversal of 1145415245 is 5425145411.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 93450889 + 1051964356 = 9667^2 + 32434^2 .

It is not a de Polignac number, because 1145415245 - 2¹⁸ = 1145153101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78635 + ... + 92055.

It is an arithmetic number, because the mean of its divisors is an integer number (62633763).

Almost surely, 2^1145415245 is an apocalyptic number.

It is an amenable number.

1145415245 is a deficient number, since it is larger than the sum of its proper divisors (357795067).

1145415245 is a wasteful number, since it uses less digits than its factorization.

1145415245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13553 (or 13540 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 1145415245 is about 33843.9838819250. The cubic root of 1145415245 is about 1046.2954089975.

The spelling of 1145415245 in words is "one billion, one hundred forty-five million, four hundred fifteen thousand, two hundred forty-five".