120915799 has 2 divisors, whose sum is σ = 120915800. Its totient is φ = 120915798.

The previous prime is 120915787. The next prime is 120915827. The reversal of 120915799 is 997519021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120915799 - 2¹⁹ = 120391511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120915709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60457899 + 60457900.

It is an arithmetic number, because the mean of its divisors is an integer number (60457900).

Almost surely, 2^120915799 is an apocalyptic number.

120915799 is a deficient number, since it is larger than the sum of its proper divisors (1).

120915799 is an equidigital number, since it uses as much as digits as its factorization.

120915799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 120915799 is about 10996.1720157517. The cubic root of 120915799 is about 494.4939889119.

The spelling of 120915799 in words is "one hundred twenty million, nine hundred fifteen thousand, seven hundred ninety-nine".