120145349 has 4 divisors (see below), whose sum is σ = 120910764. Its totient is φ = 119379936.

The previous prime is 120145339. The next prime is 120145369. The reversal of 120145349 is 943541021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943541021 = 17 ⋅55502413.

It can be written as a sum of positive squares in 2 ways, for example, as 25180324 + 94965025 = 5018^2 + 9745^2 .

It is a cyclic number.

It is not a de Polignac number, because 120145349 - 2⁸ = 120145093 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 (120145339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382472 + ... + 382785.

It is an arithmetic number, because the mean of its divisors is an integer number (30227691).

Almost surely, 2^120145349 is an apocalyptic number.

It is an amenable number.

120145349 is a deficient number, since it is larger than the sum of its proper divisors (765415).

120145349 is an equidigital number, since it uses as much as digits as its factorization.

120145349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765414.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 120145349 is about 10961.0833862351. The cubic root of 120145349 is about 493.4414797707.

The spelling of 120145349 in words is "one hundred twenty million, one hundred forty-five thousand, three hundred forty-nine".