1145200544 has 48 divisors (see below), whose sum is σ = 2358175680. Its totient is φ = 546416640.

The previous prime is 1145200541. The next prime is 1145200549. The reversal of 1145200544 is 4450025411.

It is a super-2 number, since 2×1145200544² = 2622968571955791872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145200541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359792 + ... + 362960.

It is an arithmetic number, because the mean of its divisors is an integer number (49128660).

Almost surely, 2^1145200544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145200544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179087840).

1145200544 is an abundant number, since it is smaller than the sum of its proper divisors (1212975136).

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

1145200544 is a wasteful number, since it uses less digits than its factorization.

1145200544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693 (or 3685 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1145200544 is about 33840.8118105934. The cubic root of 1145200544 is about 1046.2300310457.

Adding to 1145200544 its reverse (4450025411), we get a palindrome (5595225955).

The spelling of 1145200544 in words is "one billion, one hundred forty-five million, two hundred thousand, five hundred forty-four".