120742513 has 2 divisors, whose sum is σ = 120742514. Its totient is φ = 120742512.

The previous prime is 120742487. The next prime is 120742519. The reversal of 120742513 is 315247021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81216144 + 39526369 = 9012^2 + 6287^2 .

It is a cyclic number.

It is not a de Polignac number, because 120742513 - 2¹⁷ = 120611441 is a prime.

It is not a weakly prime, because it can be changed into another prime (120742519) 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, 60371256 + 60371257.

It is an arithmetic number, because the mean of its divisors is an integer number (60371257).

Almost surely, 2^120742513 is an apocalyptic number.

It is an amenable number.

120742513 is a deficient number, since it is larger than the sum of its proper divisors (1).

120742513 is an equidigital number, since it uses as much as digits as its factorization.

120742513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 120742513 is about 10988.2898123411. The cubic root of 120742513 is about 494.2576540612.

Adding to 120742513 its reverse (315247021), we get a palindrome (435989534).

The spelling of 120742513 in words is "one hundred twenty million, seven hundred forty-two thousand, five hundred thirteen".