650121151 has 4 divisors (see below), whose sum is σ = 678387312. Its totient is φ = 621854992.

The previous prime is 650121149. The next prime is 650121163. The reversal of 650121151 is 151121056.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 650121151 - 2¹ = 650121149 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 (650121551) 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, 14133046 + ... + 14133091.

It is an arithmetic number, because the mean of its divisors is an integer number (169596828).

Almost surely, 2^650121151 is an apocalyptic number.

650121151 is a deficient number, since it is larger than the sum of its proper divisors (28266161).

650121151 is a wasteful number, since it uses less digits than its factorization.

650121151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28266160.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 650121151 is about 25497.4734238512. The cubic root of 650121151 is about 866.2929203226.

It can be divided in two parts, 650 and 121151, that added together give a square (121801 = 349²).

The spelling of 650121151 in words is "six hundred fifty million, one hundred twenty-one thousand, one hundred fifty-one".