120520087 has 2 divisors, whose sum is σ = 120520088. Its totient is φ = 120520086.

The previous prime is 120520073. The next prime is 120520121. The reversal of 120520087 is 780025021.

It is a weak prime.

It is an emirp because it is prime and its reverse (780025021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120520087 - 2¹⁵ = 120487319 is a prime.

It is a super-3 number, since 3×120520087³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120520487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60260043 + 60260044.

It is an arithmetic number, because the mean of its divisors is an integer number (60260044).

Almost surely, 2^120520087 is an apocalyptic number.

120520087 is a deficient number, since it is larger than the sum of its proper divisors (1).

120520087 is an equidigital number, since it uses as much as digits as its factorization.

120520087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 120520087 is about 10978.1640997026. The cubic root of 120520087 is about 493.9539683488.

The spelling of 120520087 in words is "one hundred twenty million, five hundred twenty thousand, eighty-seven".