120866461 has 4 divisors (see below), whose sum is σ = 125034300. Its totient is φ = 116698624.

The previous prime is 120866423. The next prime is 120866491. The reversal of 120866461 is 164668021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88717561 + 32148900 = 9419^2 + 5670^2 .

It is a cyclic number.

It is not a de Polignac number, because 120866461 - 2¹⁷ = 120735389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120866491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083876 + ... + 2083933.

It is an arithmetic number, because the mean of its divisors is an integer number (31258575).

Almost surely, 2^120866461 is an apocalyptic number.

It is an amenable number.

120866461 is a deficient number, since it is larger than the sum of its proper divisors (4167839).

120866461 is an equidigital number, since it uses as much as digits as its factorization.

120866461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167838.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 120866461 is about 10993.9283697867. The cubic root of 120866461 is about 494.4267226442.

The spelling of 120866461 in words is "one hundred twenty million, eight hundred sixty-six thousand, four hundred sixty-one".