650242157 has 4 divisors (see below), whose sum is σ = 650698620. Its totient is φ = 649785696.

The previous prime is 650242123. The next prime is 650242199. The reversal of 650242157 is 751242056.

650242157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 242767561 + 407474596 = 15581^2 + 20186^2 .

It is a cyclic number.

It is not a de Polignac number, because 650242157 - 2¹⁰ = 650241133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650242057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226088 + ... + 228945.

It is an arithmetic number, because the mean of its divisors is an integer number (162674655).

Almost surely, 2^650242157 is an apocalyptic number.

It is an amenable number.

650242157 is a deficient number, since it is larger than the sum of its proper divisors (456463).

650242157 is a wasteful number, since it uses less digits than its factorization.

650242157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456462.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 650242157 is about 25499.8462152226. The cubic root of 650242157 is about 866.3466642225.

The spelling of 650242157 in words is "six hundred fifty million, two hundred forty-two thousand, one hundred fifty-seven".