120912487 has 2 divisors, whose sum is σ = 120912488. Its totient is φ = 120912486.

The previous prime is 120912469. The next prime is 120912499. The reversal of 120912487 is 784219021.

It is a strong prime.

It is an emirp because it is prime and its reverse (784219021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120912487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120912427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60456243 + 60456244.

It is an arithmetic number, because the mean of its divisors is an integer number (60456244).

Almost surely, 2^120912487 is an apocalyptic number.

120912487 is a deficient number, since it is larger than the sum of its proper divisors (1).

120912487 is an equidigital number, since it uses as much as digits as its factorization.

120912487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 120912487 is about 10996.0214168580. The cubic root of 120912487 is about 494.4894739821.

The spelling of 120912487 in words is "one hundred twenty million, nine hundred twelve thousand, four hundred eighty-seven".