618500148 has 72 divisors (see below), whose sum is σ = 1682618112. Its totient is φ = 176311296.

The previous prime is 618500123. The next prime is 618500149. The reversal of 618500148 is 841005816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618500149) 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 23 ways as a sum of consecutive naturals, for example, 338365 + ... + 340187.

It is an arithmetic number, because the mean of its divisors is an integer number (23369696).

Almost surely, 2^618500148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618500148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (841309056).

618500148 is an abundant number, since it is smaller than the sum of its proper divisors (1064117964).

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

618500148 is a wasteful number, since it uses less digits than its factorization.

618500148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421 (or 2412 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 618500148 is about 24869.6632064047. The cubic root of 618500148 is about 852.0137481526.

The spelling of 618500148 in words is "six hundred eighteen million, five hundred thousand, one hundred forty-eight".