1245634 has 16 divisors (see below), whose sum is σ = 2100672. Its totient is φ = 549648.

The previous prime is 1245623. The next prime is 1245649. The reversal of 1245634 is 4365421.

It is a junction number, because it is equal to n+sod(n) for n = 1245599 and 1245608.

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, 444 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (131292).

2^1245634 is an apocalyptic number.

1245634 is a deficient number, since it is larger than the sum of its proper divisors (855038).

1245634 is a wasteful number, since it uses less digits than its factorization.

1245634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121.

The product of its digits is 2880, while the sum is 25.

The square root of 1245634 is about 1116.0797462547. The cubic root of 1245634 is about 107.5961713742.

The spelling of 1245634 in words is "one million, two hundred forty-five thousand, six hundred thirty-four".