1229845 has 8 divisors (see below), whose sum is σ = 1483776. Its totient is φ = 978576.

The previous prime is 1229827. The next prime is 1229869. The reversal of 1229845 is 5489221.

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 1229845 - 2¹¹ = 1227797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564 + ... + 1666.

It is an arithmetic number, because the mean of its divisors is an integer number (185472).

2^1229845 is an apocalyptic number.

It is an amenable number.

1229845 is a deficient number, since it is larger than the sum of its proper divisors (253931).

1229845 is a wasteful number, since it uses less digits than its factorization.

1229845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331.

The product of its digits is 5760, while the sum is 31.

The square root of 1229845 is about 1108.9837690426. The cubic root of 1229845 is about 107.1396261460.

The spelling of 1229845 in words is "one million, two hundred twenty-nine thousand, eight hundred forty-five".