120649493 has 8 divisors (see below), whose sum is σ = 127886040. Its totient is φ = 113428480.

The previous prime is 120649481. The next prime is 120649531. The reversal of 120649493 is 394946021.

It can be written as a sum of positive squares in 4 ways, for example, as 62615569 + 58033924 = 7913^2 + 7618^2 .

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 120649493 - 2²⁰ = 119600917 is a prime.

It is a super-2 number, since 2×120649493² = 29112600322314098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120649433) 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, 14693 + ... + 21381.

It is an arithmetic number, because the mean of its divisors is an integer number (15985755).

Almost surely, 2^120649493 is an apocalyptic number.

It is an amenable number.

120649493 is a deficient number, since it is larger than the sum of its proper divisors (7236547).

120649493 is a wasteful number, since it uses less digits than its factorization.

120649493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7767.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 120649493 is about 10984.0563090327. The cubic root of 120649493 is about 494.1306961309.

The spelling of 120649493 in words is "one hundred twenty million, six hundred forty-nine thousand, four hundred ninety-three".