120291893 has 2 divisors, whose sum is σ = 120291894. Its totient is φ = 120291892.

The previous prime is 120291887. The next prime is 120291901. The reversal of 120291893 is 398192021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114425809 + 5866084 = 10697^2 + 2422^2 .

It is a cyclic number.

It is not a de Polignac number, because 120291893 - 2⁴ = 120291877 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120291803) 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, 60145946 + 60145947.

It is an arithmetic number, because the mean of its divisors is an integer number (60145947).

Almost surely, 2^120291893 is an apocalyptic number.

It is an amenable number.

120291893 is a deficient number, since it is larger than the sum of its proper divisors (1).

120291893 is an equidigital number, since it uses as much as digits as its factorization.

120291893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 120291893 is about 10967.7660897742. The cubic root of 120291893 is about 493.6420188371.

The spelling of 120291893 in words is "one hundred twenty million, two hundred ninety-one thousand, eight hundred ninety-three".