120728533 has 2 divisors, whose sum is σ = 120728534. Its totient is φ = 120728532.

The previous prime is 120728513. The next prime is 120728549. The reversal of 120728533 is 335827021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100460529 + 20268004 = 10023^2 + 4502^2 .

It is a cyclic number.

It is not a de Polignac number, because 120728533 - 2⁵ = 120728501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120728495 and 120728504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120728513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60364266 + 60364267.

It is an arithmetic number, because the mean of its divisors is an integer number (60364267).

Almost surely, 2^120728533 is an apocalyptic number.

It is an amenable number.

120728533 is a deficient number, since it is larger than the sum of its proper divisors (1).

120728533 is an equidigital number, since it uses as much as digits as its factorization.

120728533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 120728533 is about 10987.6536621792. The cubic root of 120728533 is about 494.2385776853.

The spelling of 120728533 in words is "one hundred twenty million, seven hundred twenty-eight thousand, five hundred thirty-three".