120861097 has 6 divisors (see below), whose sum is σ = 140593578. Its totient is φ = 103595184.

The previous prime is 120861079. The next prime is 120861119. The reversal of 120861097 is 790168021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 114404416 + 6456681 = 10696^2 + 2541^2 .

It is not a de Polignac number, because 120861097 - 2¹⁹ = 120336809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120861497) 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 in 5 ways as a sum of consecutive naturals, for example, 1233228 + ... + 1233325.

It is an arithmetic number, because the mean of its divisors is an integer number (23432263).

Almost surely, 2^120861097 is an apocalyptic number.

It is an amenable number.

120861097 is a deficient number, since it is larger than the sum of its proper divisors (19732481).

120861097 is an equidigital number, since it uses as much as digits as its factorization.

120861097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466567 (or 2466560 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 120861097 is about 10993.6844142444. The cubic root of 120861097 is about 494.4194083897.

The spelling of 120861097 in words is "one hundred twenty million, eight hundred sixty-one thousand, ninety-seven".