121150025 has 12 divisors (see below), whose sum is σ = 154287372. Its totient is φ = 94299840.

The previous prime is 121150021. The next prime is 121150031. The reversal of 121150025 is 520051121.

It can be written as a sum of positive squares in 6 ways, for example, as 12823561 + 108326464 = 3581^2 + 10408^2 .

It is not a de Polignac number, because 121150025 - 2² = 121150021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121149985 and 121150012.

It is not an unprimeable number, because it can be changed into a prime (121150021) 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 11 ways as a sum of consecutive naturals, for example, 64562 + ... + 66411.

It is an arithmetic number, because the mean of its divisors is an integer number (12857281).

Almost surely, 2^121150025 is an apocalyptic number.

It is an amenable number.

121150025 is a deficient number, since it is larger than the sum of its proper divisors (33137347).

121150025 is a wasteful number, since it uses less digits than its factorization.

121150025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131020 (or 131015 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 121150025 is about 11006.8172057139. The cubic root of 121150025 is about 494.8130777414.

The spelling of 121150025 in words is "one hundred twenty-one million, one hundred fifty thousand, twenty-five".