1145343250 has 32 divisors (see below), whose sum is σ = 2184562224. Its totient is φ = 449488000.

The previous prime is 1145343239. The next prime is 1145343257. The reversal of 1145343250 is 523435411.

It can be written as a sum of positive squares in 8 ways, for example, as 117050761 + 1028292489 = 10819^2 + 32067^2 .

It is a super-2 number, since 2×1145343250² = 2623622320641125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145343257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29971 + ... + 56470.

Almost surely, 2^1145343250 is an apocalyptic number.

1145343250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145343250 is a deficient number, since it is larger than the sum of its proper divisors (1039218974).

1145343250 is an equidigital number, since it uses as much as digits as its factorization.

1145343250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86511 (or 86501 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1145343250 is about 33842.9202345188. The cubic root of 1145343250 is about 1046.2734869284.

Adding to 1145343250 its reverse (523435411), we get a palindrome (1668778661).

The spelling of 1145343250 in words is "one billion, one hundred forty-five million, three hundred forty-three thousand, two hundred fifty".