1145152250 has 32 divisors (see below), whose sum is σ = 2338614720. Its totient is φ = 416418000.

The previous prime is 1145152243. The next prime is 1145152271. The reversal of 1145152250 is 522515411.

It is a super-2 number, since 2×1145152250² = 2622747351360125000, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 205460 + ... + 210959.

It is an arithmetic number, because the mean of its divisors is an integer number (73081710).

Almost surely, 2^1145152250 is an apocalyptic number.

1145152250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145152250 is an abundant number, since it is smaller than the sum of its proper divisors (1193462470).

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

1145152250 is a wasteful number, since it uses less digits than its factorization.

1145152250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416447 (or 416437 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1145152250 is about 33840.0982563585. The cubic root of 1145152250 is about 1046.2153240602.

Adding to 1145152250 its reverse (522515411), we get a palindrome (1667667661).

The spelling of 1145152250 in words is "one billion, one hundred forty-five million, one hundred fifty-two thousand, two hundred fifty".