648700134 has 16 divisors (see below), whose sum is σ = 1297721088. Its totient is φ = 216179912.

The previous prime is 648700133. The next prime is 648700139. The reversal of 648700134 is 431007846.

It is a junction number, because it is equal to n+sod(n) for n = 648700095 and 648700104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648700133) 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, 18919 + ... + 40685.

It is an arithmetic number, because the mean of its divisors is an integer number (81107568).

Almost surely, 2^648700134 is an apocalyptic number.

648700134 is an abundant number, since it is smaller than the sum of its proper divisors (649020954).

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

648700134 is a wasteful number, since it uses less digits than its factorization.

648700134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26739.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 648700134 is about 25469.5923406717. The cubic root of 648700134 is about 865.6612867862.

The spelling of 648700134 in words is "six hundred forty-eight million, seven hundred thousand, one hundred thirty-four".