1147001 has 4 divisors (see below), whose sum is σ = 1161600. Its totient is φ = 1132404.

The previous prime is 1146989. The next prime is 1147009. The reversal of 1147001 is 1007411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1007411 = 41 ⋅24571.

It is a cyclic number.

It is not a de Polignac number, because 1147001 - 2¹⁸ = 884857 is a prime.

It is a super-2 number, since 2×1147001² = 2631222588002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7181 + ... + 7338.

It is an arithmetic number, because the mean of its divisors is an integer number (290400).

2^1147001 is an apocalyptic number.

It is an amenable number.

1147001 is a deficient number, since it is larger than the sum of its proper divisors (14599).

1147001 is an equidigital number, since it uses as much as digits as its factorization.

1147001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14598.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1147001 is about 1070.9813257009. The cubic root of 1147001 is about 104.6778029631.

The spelling of 1147001 in words is "one million, one hundred forty-seven thousand, one".