1145775 has 12 divisors (see below), whose sum is σ = 1894472. Its totient is φ = 611040.

The previous prime is 1145773. The next prime is 1145789. The reversal of 1145775 is 5775411.

It is not a de Polignac number, because 1145775 - 2¹ = 1145773 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7564 + ... + 7713.

2^1145775 is an apocalyptic number.

1145775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145775 is a deficient number, since it is larger than the sum of its proper divisors (748697).

1145775 is a wasteful number, since it uses less digits than its factorization.

1145775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15290 (or 15285 counting only the distinct ones).

The product of its digits is 4900, while the sum is 30.

The square root of 1145775 is about 1070.4088004123. The cubic root of 1145775 is about 104.6404938593.

The spelling of 1145775 in words is "one million, one hundred forty-five thousand, seven hundred seventy-five".