120755257 has 6 divisors (see below), whose sum is σ = 140470458. Its totient is φ = 103504464.

The previous prime is 120755237. The next prime is 120755263. The reversal of 120755257 is 752557021.

It can be written as a sum of positive squares in only one way, i.e., 101183481 + 19571776 = 10059^2 + 4424^2 .

It is a de Polignac number, because none of the positive numbers 2^k-120755257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120755207) 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 5 ways as a sum of consecutive naturals, for example, 1232148 + ... + 1232245.

It is an arithmetic number, because the mean of its divisors is an integer number (23411743).

Almost surely, 2^120755257 is an apocalyptic number.

It is an amenable number.

120755257 is a deficient number, since it is larger than the sum of its proper divisors (19715201).

120755257 is an equidigital number, since it uses as much as digits as its factorization.

120755257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464407 (or 2464400 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 120755257 is about 10988.8696870970. The cubic root of 120755257 is about 494.2750425733.

The spelling of 120755257 in words is "one hundred twenty million, seven hundred fifty-five thousand, two hundred fifty-seven".