1145254690 has 32 divisors (see below), whose sum is σ = 2114614656. Its totient is φ = 446342400.

The previous prime is 1145254639. The next prime is 1145254717. The reversal of 1145254690 is 964525411.

It is a super-2 number, since 2×1145254690² = 2623216609933992200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

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, 183115 + ... + 189265.

It is an arithmetic number, because the mean of its divisors is an integer number (66081708).

Almost surely, 2^1145254690 is an apocalyptic number.

1145254690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145254690 is a deficient number, since it is larger than the sum of its proper divisors (969359966).

1145254690 is a wasteful number, since it uses less digits than its factorization.

1145254690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1145254690 is about 33841.6118114962. The cubic root of 1145254690 is about 1046.2465196508.

The spelling of 1145254690 in words is "one billion, one hundred forty-five million, two hundred fifty-four thousand, six hundred ninety".