1248955653 has 32 divisors (see below), whose sum is σ = 1896193152. Its totient is φ = 724505600.

The previous prime is 1248955639. The next prime is 1248955657. The reversal of 1248955653 is 3565598421.

It is a cyclic number.

It is not a de Polignac number, because 1248955653 - 2⁸ = 1248955397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248955657) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 63001 + ... + 80417.

It is an arithmetic number, because the mean of its divisors is an integer number (59256036).

Almost surely, 2^1248955653 is an apocalyptic number.

It is an amenable number.

1248955653 is a deficient number, since it is larger than the sum of its proper divisors (647237499).

1248955653 is a wasteful number, since it uses less digits than its factorization.

1248955653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17525.

The product of its digits is 1296000, while the sum is 48.

The square root of 1248955653 is about 35340.5666762716. The cubic root of 1248955653 is about 1076.9172644429.

The spelling of 1248955653 in words is "one billion, two hundred forty-eight million, nine hundred fifty-five thousand, six hundred fifty-three".