1145822500 has 45 divisors (see below), whose sum is σ = 2509391269. Its totient is φ = 457652000.

The previous prime is 1145822473. The next prime is 1145822507. The reversal of 1145822500 is 52285411.

The square root of 1145822500 is 33850.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 142706916 + 1003115584 = 11946^2 + 31672^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145822507) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1692162 + ... + 1692838.

Almost surely, 2^1145822500 is an apocalyptic number.

1145822500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145822500 is the 33850-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145822500

1145822500 is an abundant number, since it is smaller than the sum of its proper divisors (1363568769).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145822500 is an frugal number, since it uses more digits than its factorization.

1145822500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The cubic root of 1145822500 is about 1046.4193985425.

The spelling of 1145822500 in words is "one billion, one hundred forty-five million, eight hundred twenty-two thousand, five hundred".