650091121 has 8 divisors (see below), whose sum is σ = 666457344. Its totient is φ = 633749280.

The previous prime is 650091097. The next prime is 650091131. The reversal of 650091121 is 121190056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 650091121 - 2¹¹ = 650089073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650091131) 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, 55636 + ... + 66298.

It is an arithmetic number, because the mean of its divisors is an integer number (83307168).

Almost surely, 2^650091121 is an apocalyptic number.

It is an amenable number.

650091121 is a deficient number, since it is larger than the sum of its proper divisors (16366223).

650091121 is a wasteful number, since it uses less digits than its factorization.

650091121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12191.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 650091121 is about 25496.8845351741. The cubic root of 650091121 is about 866.2795816924.

The spelling of 650091121 in words is "six hundred fifty million, ninety-one thousand, one hundred twenty-one".