121004525 has 12 divisors (see below), whose sum is σ = 150258612. Its totient is φ = 96666240.

The previous prime is 121004447. The next prime is 121004551. The reversal of 121004525 is 525400121.

It can be written as a sum of positive squares in 6 ways, for example, as 948676 + 120055849 = 974^2 + 10957^2 .

It is not a de Polignac number, because 121004525 - 2¹⁶ = 120938989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121004497 and 121004506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16889 + ... + 22961.

It is an arithmetic number, because the mean of its divisors is an integer number (12521551).

Almost surely, 2^121004525 is an apocalyptic number.

It is an amenable number.

121004525 is a deficient number, since it is larger than the sum of its proper divisors (29254087).

121004525 is an equidigital number, since it uses as much as digits as its factorization.

121004525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880 (or 6875 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 121004525 is about 11000.2056798953. The cubic root of 121004525 is about 494.6149098253.

Adding to 121004525 its reverse (525400121), we get a palindrome (646404646).

The spelling of 121004525 in words is "one hundred twenty-one million, four thousand, five hundred twenty-five".