121061525 has 12 divisors (see below), whose sum is σ = 161664132. Its totient is φ = 89399040.

The previous prime is 121061513. The next prime is 121061531. The reversal of 121061525 is 525160121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 51739249 + 69322276 = 7193^2 + 8326^2 .

It is not a de Polignac number, because 121061525 - 2¹² = 121057429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121061525.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 185924 + ... + 186573.

It is an arithmetic number, because the mean of its divisors is an integer number (13472011).

Almost surely, 2^121061525 is an apocalyptic number.

It is an amenable number.

121061525 is a deficient number, since it is larger than the sum of its proper divisors (40602607).

121061525 is a wasteful number, since it uses less digits than its factorization.

121061525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372520 (or 372515 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 121061525 is about 11002.7962355030. The cubic root of 121061525 is about 494.6925615335.

It can be divided in two parts, 12106 and 1525, that added together give a palindrome (13631).

The spelling of 121061525 in words is "one hundred twenty-one million, sixty-one thousand, five hundred twenty-five".