1147995 has 24 divisors (see below), whose sum is σ = 2018016. Its totient is φ = 603648.

The previous prime is 1147987. The next prime is 1147997. The reversal of 1147995 is 5997411.

It is not a de Polignac number, because 1147995 - 2³ = 1147987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1147997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4234 + ... + 4496.

It is an arithmetic number, because the mean of its divisors is an integer number (84084).

2^1147995 is an apocalyptic number.

1147995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1147995 is a deficient number, since it is larger than the sum of its proper divisors (870021).

1147995 is a wasteful number, since it uses less digits than its factorization.

1147995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 368 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 1147995 is about 1071.4452855839. The cubic root of 1147995 is about 104.7080324322.

The spelling of 1147995 in words is "one million, one hundred forty-seven thousand, nine hundred ninety-five".