120242477 has 2 divisors, whose sum is σ = 120242478. Its totient is φ = 120242476.

The previous prime is 120242443. The next prime is 120242483. The reversal of 120242477 is 774242021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68128516 + 52113961 = 8254^2 + 7219^2 .

It is a cyclic number.

It is not a de Polignac number, because 120242477 - 2²⁰ = 119193901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120242417) 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 as a sum of consecutive naturals, namely, 60121238 + 60121239.

It is an arithmetic number, because the mean of its divisors is an integer number (60121239).

Almost surely, 2^120242477 is an apocalyptic number.

It is an amenable number.

120242477 is a deficient number, since it is larger than the sum of its proper divisors (1).

120242477 is an equidigital number, since it uses as much as digits as its factorization.

120242477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 120242477 is about 10965.5130750914. The cubic root of 120242477 is about 493.5744134081.

Adding to 120242477 its reverse (774242021), we get a palindrome (894484498).

The spelling of 120242477 in words is "one hundred twenty million, two hundred forty-two thousand, four hundred seventy-seven".