1253053646 has 32 divisors (see below), whose sum is σ = 2145836448. Its totient is φ = 543651840.

The previous prime is 1253053619. The next prime is 1253053679. The reversal of 1253053646 is 6463503521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600521 + ... + 602603.

It is an arithmetic number, because the mean of its divisors is an integer number (67057389).

Almost surely, 2^1253053646 is an apocalyptic number.

1253053646 is a deficient number, since it is larger than the sum of its proper divisors (892782802).

1253053646 is a wasteful number, since it uses less digits than its factorization.

1253053646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 1253053646 is about 35398.4977929855. The cubic root of 1253053646 is about 1078.0938158043.

The spelling of 1253053646 in words is "one billion, two hundred fifty-three million, fifty-three thousand, six hundred forty-six".