120405853 has 2 divisors, whose sum is σ = 120405854. Its totient is φ = 120405852.

The previous prime is 120405833. The next prime is 120405893. The reversal of 120405853 is 358504021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117440569 + 2965284 = 10837^2 + 1722^2 .

It is a cyclic number.

It is not a de Polignac number, because 120405853 - 2⁵ = 120405821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120405823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60202926 + 60202927.

It is an arithmetic number, because the mean of its divisors is an integer number (60202927).

Almost surely, 2^120405853 is an apocalyptic number.

It is an amenable number.

120405853 is a deficient number, since it is larger than the sum of its proper divisors (1).

120405853 is an equidigital number, since it uses as much as digits as its factorization.

120405853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 120405853 is about 10972.9600837696. The cubic root of 120405853 is about 493.7978555763.

Adding to 120405853 its reverse (358504021), we get a palindrome (478909874).

The spelling of 120405853 in words is "one hundred twenty million, four hundred five thousand, eight hundred fifty-three".