120726553 has 2 divisors, whose sum is σ = 120726554. Its totient is φ = 120726552.

The previous prime is 120726533. The next prime is 120726559. The reversal of 120726553 is 355627021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67026969 + 53699584 = 8187^2 + 7328^2 .

It is an emirp because it is prime and its reverse (355627021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120726553 - 2⁹ = 120726041 is a prime.

It is not a weakly prime, because it can be changed into another prime (120726559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60363276 + 60363277.

It is an arithmetic number, because the mean of its divisors is an integer number (60363277).

Almost surely, 2^120726553 is an apocalyptic number.

It is an amenable number.

120726553 is a deficient number, since it is larger than the sum of its proper divisors (1).

120726553 is an equidigital number, since it uses as much as digits as its factorization.

120726553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 120726553 is about 10987.5635606808. The cubic root of 120726553 is about 494.2358757619.

The spelling of 120726553 in words is "one hundred twenty million, seven hundred twenty-six thousand, five hundred fifty-three".