120897577 has 2 divisors, whose sum is σ = 120897578. Its totient is φ = 120897576.

The previous prime is 120897541. The next prime is 120897619. The reversal of 120897577 is 775798021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72233001 + 48664576 = 8499^2 + 6976^2 .

It is a cyclic number.

It is not a de Polignac number, because 120897577 - 2⁷ = 120897449 is a prime.

It is not a weakly prime, because it can be changed into another prime (120897377) 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, 60448788 + 60448789.

It is an arithmetic number, because the mean of its divisors is an integer number (60448789).

Almost surely, 2^120897577 is an apocalyptic number.

It is an amenable number.

120897577 is a deficient number, since it is larger than the sum of its proper divisors (1).

120897577 is an equidigital number, since it uses as much as digits as its factorization.

120897577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246960, while the sum is 46.

The square root of 120897577 is about 10995.3434234680. The cubic root of 120897577 is about 494.4691475975.

The spelling of 120897577 in words is "one hundred twenty million, eight hundred ninety-seven thousand, five hundred seventy-seven".