120649313 has 4 divisors (see below), whose sum is σ = 120769428. Its totient is φ = 120529200.

The previous prime is 120649273. The next prime is 120649327. The reversal of 120649313 is 313946021.

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 28815424 + 91833889 = 5368^2 + 9583^2 .

It is a cyclic number.

It is not a de Polignac number, because 120649313 - 2¹⁰ = 120648289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120649343) 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, 58538 + ... + 60563.

It is an arithmetic number, because the mean of its divisors is an integer number (30192357).

Almost surely, 2^120649313 is an apocalyptic number.

It is an amenable number.

120649313 is a deficient number, since it is larger than the sum of its proper divisors (120115).

120649313 is a wasteful number, since it uses less digits than its factorization.

120649313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120114.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 120649313 is about 10984.0481153353. The cubic root of 120649313 is about 494.1304503955.

The spelling of 120649313 in words is "one hundred twenty million, six hundred forty-nine thousand, three hundred thirteen".