1145995 has 4 divisors (see below), whose sum is σ = 1375200. Its totient is φ = 916792.

The previous prime is 1145983. The next prime is 1145999. The reversal of 1145995 is 5995411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1145995 - 2¹³ = 1137803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1145995.

It is not an unprimeable number, because it can be changed into a prime (1145999) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 114595 + ... + 114604.

It is an arithmetic number, because the mean of its divisors is an integer number (343800).

2^1145995 is an apocalyptic number.

1145995 is a deficient number, since it is larger than the sum of its proper divisors (229205).

1145995 is an equidigital number, since it uses as much as digits as its factorization.

1145995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229204.

The product of its digits is 8100, while the sum is 34.

The square root of 1145995 is about 1070.5115599563. The cubic root of 1145995 is about 104.6471907632.

The spelling of 1145995 in words is "one million, one hundred forty-five thousand, nine hundred ninety-five".