1229081 has 8 divisors (see below), whose sum is σ = 1425024. Its totient is φ = 1038240.

The previous prime is 1229077. The next prime is 1229093. The reversal of 1229081 is 1809221.

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

It is not a de Polignac number, because 1229081 - 2² = 1229077 is a prime.

It is a super-2 number, since 2×1229081² = 3021280209122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1229021) 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, 740 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (178128).

2^1229081 is an apocalyptic number.

It is an amenable number.

1229081 is a deficient number, since it is larger than the sum of its proper divisors (195943).

1229081 is an equidigital number, since it uses as much as digits as its factorization.

1229081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1229081 is about 1108.6392560252. The cubic root of 1229081 is about 107.1174359160.

The spelling of 1229081 in words is "one million, two hundred twenty-nine thousand, eighty-one".