1148161 has 4 divisors (see below), whose sum is σ = 1312192. Its totient is φ = 984132.

The previous prime is 1148111. The next prime is 1148167. The reversal of 1148161 is 1618411.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148161 is a prime.

1148161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1148167) 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, 82005 + ... + 82018.

It is an arithmetic number, because the mean of its divisors is an integer number (328048).

2^1148161 is an apocalyptic number.

It is an amenable number.

1148161 is a deficient number, since it is larger than the sum of its proper divisors (164031).

1148161 is an equidigital number, since it uses as much as digits as its factorization.

1148161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164030.

The product of its digits is 192, while the sum is 22.

The square root of 1148161 is about 1071.5227482420. The cubic root of 1148161 is about 104.7130791138.

The spelling of 1148161 in words is "one million, one hundred forty-eight thousand, one hundred sixty-one".