1208381 has 4 divisors (see below), whose sum is σ = 1272000. Its totient is φ = 1144764.

The previous prime is 1208371. The next prime is 1208387. The reversal of 1208381 is 1838021.

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-1208381 is a prime.

It is a super-2 number, since 2×1208381² = 2920369282322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208387) 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, 31781 + ... + 31818.

It is an arithmetic number, because the mean of its divisors is an integer number (318000).

2^1208381 is an apocalyptic number.

It is an amenable number.

1208381 is a deficient number, since it is larger than the sum of its proper divisors (63619).

1208381 is an equidigital number, since it uses as much as digits as its factorization.

1208381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63618.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1208381 is about 1099.2638445796. The cubic root of 1208381 is about 106.5126760170.

The spelling of 1208381 in words is "one million, two hundred eight thousand, three hundred eighty-one".