1234945 has 8 divisors (see below), whose sum is σ = 1506600. Its totient is φ = 971520.

The previous prime is 1234901. The next prime is 1234951. The reversal of 1234945 is 5494321.

It can be written as a sum of positive squares in 4 ways, for example, as 16129 + 1218816 = 127^2 + 1104^2 .

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

It is not a de Polignac number, because 1234945 - 2¹⁷ = 1103873 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720 + ... + 2329.

It is an arithmetic number, because the mean of its divisors is an integer number (188325).

It is a Proth number, since it is equal to 603 ⋅ 2¹¹ + 1 and 603 < 2¹¹.

2^1234945 is an apocalyptic number.

It is an amenable number.

1234945 is a deficient number, since it is larger than the sum of its proper divisors (271655).

1234945 is an equidigital number, since it uses as much as digits as its factorization.

1234945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its digits is 4320, while the sum is 28.

The square root of 1234945 is about 1111.2807925992. The cubic root of 1234945 is about 107.2875197233.

The spelling of 1234945 in words is "one million, two hundred thirty-four thousand, nine hundred forty-five".