648153903 has 8 divisors (see below), whose sum is σ = 873114928. Its totient is φ = 427647744.

The previous prime is 648153893. The next prime is 648153911. The reversal of 648153903 is 309351846.

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

It is not a de Polignac number, because 648153903 - 2¹⁶ = 648088367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648153703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113376 + ... + 1113957.

It is an arithmetic number, because the mean of its divisors is an integer number (109139366).

Almost surely, 2^648153903 is an apocalyptic number.

648153903 is a deficient number, since it is larger than the sum of its proper divisors (224961025).

648153903 is a wasteful number, since it uses less digits than its factorization.

648153903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227433.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 648153903 is about 25458.8668836616. The cubic root of 648153903 is about 865.4182449515.

The spelling of 648153903 in words is "six hundred forty-eight million, one hundred fifty-three thousand, nine hundred three".