1148281 has 4 divisors (see below), whose sum is σ = 1150864. Its totient is φ = 1145700.

The previous prime is 1148263. The next prime is 1148291. The reversal of 1148281 is 1828411.

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 not a de Polignac number, because 1148281 - 2⁵ = 1148249 is a prime.

It is a super-2 number, since 2×1148281² = 2637098509922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148261) 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, 435 + ... + 1576.

It is an arithmetic number, because the mean of its divisors is an integer number (287716).

2^1148281 is an apocalyptic number.

It is an amenable number.

1148281 is a deficient number, since it is larger than the sum of its proper divisors (2583).

1148281 is an equidigital number, since it uses as much as digits as its factorization.

1148281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582.

The product of its digits is 512, while the sum is 25.

The square root of 1148281 is about 1071.5787418571. The cubic root of 1148281 is about 104.7167270144.

The spelling of 1148281 in words is "one million, one hundred forty-eight thousand, two hundred eighty-one".