120732105 has 16 divisors (see below), whose sum is σ = 208031040. Its totient is φ = 59437248.

The previous prime is 120732103. The next prime is 120732121. The reversal of 120732105 is 501237021.

It is not a de Polignac number, because 120732105 - 2¹ = 120732103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120732103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309375 + ... + 309764.

It is an arithmetic number, because the mean of its divisors is an integer number (13001940).

Almost surely, 2^120732105 is an apocalyptic number.

120732105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120732105 is a deficient number, since it is larger than the sum of its proper divisors (87298935).

120732105 is a wasteful number, since it uses less digits than its factorization.

120732105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619160.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 120732105 is about 10987.8162070541. The cubic root of 120732105 is about 494.2434519895.

Adding to 120732105 its reverse (501237021), we get a palindrome (621969126).

The spelling of 120732105 in words is "one hundred twenty million, seven hundred thirty-two thousand, one hundred five".