650148136 has 64 divisors (see below), whose sum is σ = 1428140160. Its totient is φ = 274176000.

The previous prime is 650148131. The next prime is 650148173. The reversal of 650148136 is 631841056.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (650148131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103156 + ... + 109276.

It is an arithmetic number, because the mean of its divisors is an integer number (22314690).

Almost surely, 2^650148136 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 650148136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714070080).

650148136 is an abundant number, since it is smaller than the sum of its proper divisors (777992024).

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

650148136 is a wasteful number, since it uses less digits than its factorization.

650148136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226 (or 6222 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 650148136 is about 25498.0025884382. The cubic root of 650148136 is about 866.3049060841.

The spelling of 650148136 in words is "six hundred fifty million, one hundred forty-eight thousand, one hundred thirty-six".