120381851 has 2 divisors, whose sum is σ = 120381852. Its totient is φ = 120381850.

The previous prime is 120381841. The next prime is 120381887. The reversal of 120381851 is 158183021.

It is a weak prime.

It is an emirp because it is prime and its reverse (158183021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120381851 - 2⁶ = 120381787 is a prime.

It is not a weakly prime, because it can be changed into another prime (120381841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60190925 + 60190926.

It is an arithmetic number, because the mean of its divisors is an integer number (60190926).

Almost surely, 2^120381851 is an apocalyptic number.

120381851 is a deficient number, since it is larger than the sum of its proper divisors (1).

120381851 is an equidigital number, since it uses as much as digits as its factorization.

120381851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 120381851 is about 10971.8663407827. The cubic root of 120381851 is about 493.7650417679.

The spelling of 120381851 in words is "one hundred twenty million, three hundred eighty-one thousand, eight hundred fifty-one".