648549154 has 32 divisors (see below), whose sum is σ = 1119470400. Its totient is φ = 278691840.

The previous prime is 648549151. The next prime is 648549163. The reversal of 648549154 is 451945846.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (648549151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239842 + ... + 242530.

It is an arithmetic number, because the mean of its divisors is an integer number (34983450).

Almost surely, 2^648549154 is an apocalyptic number.

648549154 is a deficient number, since it is larger than the sum of its proper divisors (470921246).

648549154 is a wasteful number, since it uses less digits than its factorization.

648549154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298.

The product of its digits is 691200, while the sum is 46.

The square root of 648549154 is about 25466.6282416813. The cubic root of 648549154 is about 865.5941228917.

The spelling of 648549154 in words is "six hundred forty-eight million, five hundred forty-nine thousand, one hundred fifty-four".