1234445 has 4 divisors (see below), whose sum is σ = 1481340. Its totient is φ = 987552.

The previous prime is 1234439. The next prime is 1234463. The reversal of 1234445 is 5444321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 743044 + 491401 = 862^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234445 - 2¹² = 1230349 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1234445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123440 + ... + 123449.

It is an arithmetic number, because the mean of its divisors is an integer number (370335).

2^1234445 is an apocalyptic number.

It is an amenable number.

1234445 is a deficient number, since it is larger than the sum of its proper divisors (246895).

1234445 is an equidigital number, since it uses as much as digits as its factorization.

1234445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246894.

The product of its digits is 1920, while the sum is 23.

The square root of 1234445 is about 1111.0558041791. The cubic root of 1234445 is about 107.2730383763.

Adding to 1234445 its reverse (5444321), we get a palindrome (6678766).

The spelling of 1234445 in words is "one million, two hundred thirty-four thousand, four hundred forty-five".