1208981 has 8 divisors (see below), whose sum is σ = 1278720. Its totient is φ = 1141168.

The previous prime is 1208957. The next prime is 1209007. The reversal of 1208981 is 1898021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1208981 - 2¹⁰ = 1207957 is a prime.

It is a super-2 number, since 2×1208981² = 2923270116722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920 + ... + 1806.

It is an arithmetic number, because the mean of its divisors is an integer number (159840).

2^1208981 is an apocalyptic number.

It is an amenable number.

1208981 is a deficient number, since it is larger than the sum of its proper divisors (69739).

1208981 is an equidigital number, since it uses as much as digits as its factorization.

1208981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1208981 is about 1099.5367206237. The cubic root of 1208981 is about 106.5303020889.

The spelling of 1208981 in words is "one million, two hundred eight thousand, nine hundred eighty-one".