1145303552 has 20 divisors (see below), whose sum is σ = 2288371206. Its totient is φ = 572651520.

The previous prime is 1145303519. The next prime is 1145303557. The reversal of 1145303552 is 2553035411.

It can be written as a sum of positive squares in only one way, i.e., 812022016 + 333281536 = 28496^2 + 18256^2 .

It is not an unprimeable number, because it can be changed into a prime (1145303557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117949 + ... + 1118972.

Almost surely, 2^1145303552 is an apocalyptic number.

It is an amenable number.

1145303552 is a deficient number, since it is larger than the sum of its proper divisors (1143067654).

1145303552 is an frugal number, since it uses more digits than its factorization.

1145303552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236939 (or 2236923 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1145303552 is about 33842.3337256756. Note that the first 3 decimals coincide. The cubic root of 1145303552 is about 1046.2613987197.

Adding to 1145303552 its reverse (2553035411), we get a palindrome (3698338963).

The spelling of 1145303552 in words is "one billion, one hundred forty-five million, three hundred three thousand, five hundred fifty-two".