121080125 has 8 divisors (see below), whose sum is σ = 151108152. Its totient is φ = 96864000.

The previous prime is 121080121. The next prime is 121080161. The reversal of 121080125 is 521080121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35295481 + 85784644 = 5941^2 + 9262^2 .

It is not a de Polignac number, because 121080125 - 2² = 121080121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121080097 and 121080106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121080121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484196 + ... + 484445.

It is an arithmetic number, because the mean of its divisors is an integer number (18888519).

Almost surely, 2^121080125 is an apocalyptic number.

It is an amenable number.

121080125 is a deficient number, since it is larger than the sum of its proper divisors (30028027).

121080125 is an frugal number, since it uses more digits than its factorization.

121080125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968656 (or 968646 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 121080125 is about 11003.6414427225. The cubic root of 121080125 is about 494.7178952373.

The spelling of 121080125 in words is "one hundred twenty-one million, eighty thousand, one hundred twenty-five".