120126745 has 4 divisors (see below), whose sum is σ = 144152100. Its totient is φ = 96101392.

The previous prime is 120126733. The next prime is 120126781. The reversal of 120126745 is 547621021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547621021 = 19 ⋅28822159.

It can be written as a sum of positive squares in 2 ways, for example, as 75290329 + 44836416 = 8677^2 + 6696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120126745 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12012670 + ... + 12012679.

It is an arithmetic number, because the mean of its divisors is an integer number (36038025).

Almost surely, 2^120126745 is an apocalyptic number.

It is an amenable number.

120126745 is a deficient number, since it is larger than the sum of its proper divisors (24025355).

120126745 is an equidigital number, since it uses as much as digits as its factorization.

120126745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24025354.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 120126745 is about 10960.2347146400. The cubic root of 120126745 is about 493.4160093461.

Adding to 120126745 its reverse (547621021), we get a palindrome (667747766).

The spelling of 120126745 in words is "one hundred twenty million, one hundred twenty-six thousand, seven hundred forty-five".