121451525 has 24 divisors (see below), whose sum is σ = 165656064. Its totient is φ = 87768000.

The previous prime is 121451489. The next prime is 121451531. The reversal of 121451525 is 525154121.

It is not a de Polignac number, because 121451525 - 2¹⁶ = 121385989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121451494 and 121451503.

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 23 ways as a sum of consecutive naturals, for example, 11300 + ... + 19250.

It is an arithmetic number, because the mean of its divisors is an integer number (6902336).

Almost surely, 2^121451525 is an apocalyptic number.

It is an amenable number.

121451525 is a deficient number, since it is larger than the sum of its proper divisors (44204539).

121451525 is a wasteful number, since it uses less digits than its factorization.

121451525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8021 (or 8016 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 121451525 is about 11020.5047525057. The cubic root of 121451525 is about 495.2232098796.

The spelling of 121451525 in words is "one hundred twenty-one million, four hundred fifty-one thousand, five hundred twenty-five".