1145145250 has 32 divisors (see below), whose sum is σ = 2151472752. Its totient is φ = 456400000.

The previous prime is 1145145247. The next prime is 1145145263. The reversal of 1145145250 is 525415411.

It can be written as a sum of positive squares in 8 ways, for example, as 223233481 + 921911769 = 14941^2 + 30363^2 .

It is a super-2 number, since 2×1145145250² = 2622715287195125000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62100 + ... + 78400.

Almost surely, 2^1145145250 is an apocalyptic number.

1145145250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145145250 is a deficient number, since it is larger than the sum of its proper divisors (1006327502).

1145145250 is a wasteful number, since it uses less digits than its factorization.

1145145250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16599 (or 16589 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1145145250 is about 33839.9948286048. The cubic root of 1145145250 is about 1046.2131923139.

The spelling of 1145145250 in words is "one billion, one hundred forty-five million, one hundred forty-five thousand, two hundred fifty".