648260145 has 64 divisors (see below), whose sum is σ = 1306502400. Its totient is φ = 302330880.

The previous prime is 648260089. The next prime is 648260159. The reversal of 648260145 is 541062846.

648260145 is a `hidden beast` number, since 6 + 4 + 8 + 2 + 601 + 45 = 666.

It is not a de Polignac number, because 648260145 - 2⁸ = 648259889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23625 + ... + 43065.

It is an arithmetic number, because the mean of its divisors is an integer number (20414100).

Almost surely, 2^648260145 is an apocalyptic number.

648260145 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

648260145 is an abundant number, since it is smaller than the sum of its proper divisors (658242255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648260145 is a wasteful number, since it uses less digits than its factorization.

648260145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19487 (or 19481 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 648260145 is about 25460.9533403602. The cubic root of 648260145 is about 865.4655273133.

The spelling of 648260145 in words is "six hundred forty-eight million, two hundred sixty thousand, one hundred forty-five".