1226545 has 8 divisors (see below), whose sum is σ = 1549440. Its totient is φ = 929520.

The previous prime is 1226539. The next prime is 1226549. The reversal of 1226545 is 5456221.

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

It is not a de Polignac number, because 1226545 - 2⁷ = 1226417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6361 + ... + 6550.

It is an arithmetic number, because the mean of its divisors is an integer number (193680).

2^1226545 is an apocalyptic number.

It is an amenable number.

1226545 is a deficient number, since it is larger than the sum of its proper divisors (322895).

1226545 is a wasteful number, since it uses less digits than its factorization.

1226545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935.

The product of its digits is 2400, while the sum is 25.

The square root of 1226545 is about 1107.4949209816. The cubic root of 1226545 is about 107.0437123056.

It can be divided in two parts, 1226 and 545, that added together give a palindrome (1771).

The spelling of 1226545 in words is "one million, two hundred twenty-six thousand, five hundred forty-five".