1245633 has 8 divisors (see below), whose sum is σ = 1677696. Its totient is φ = 822000.

The previous prime is 1245623. The next prime is 1245649. The reversal of 1245633 is 3365421.

It is a happy number.

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

It is not a de Polignac number, because 1245633 - 2⁴ = 1245617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245613) by changing a digit.

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, 1753 + ... + 2358.

It is an arithmetic number, because the mean of its divisors is an integer number (209712).

2^1245633 is an apocalyptic number.

It is an amenable number.

1245633 is a deficient number, since it is larger than the sum of its proper divisors (432063).

1245633 is a wasteful number, since it uses less digits than its factorization.

1245633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215.

The product of its digits is 2160, while the sum is 24.

The square root of 1245633 is about 1116.0792982580. The cubic root of 1245633 is about 107.5961425813.

The spelling of 1245633 in words is "one million, two hundred forty-five thousand, six hundred thirty-three".