121652125 has 32 divisors (see below), whose sum is σ = 177795072. Its totient is φ = 81360000.

The previous prime is 121652123. The next prime is 121652137. The reversal of 121652125 is 521256121.

It is not a de Polignac number, because 121652125 - 2¹ = 121652123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 121652125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121652123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34180 + ... + 37570.

It is an arithmetic number, because the mean of its divisors is an integer number (5556096).

Almost surely, 2^121652125 is an apocalyptic number.

It is an amenable number.

121652125 is a deficient number, since it is larger than the sum of its proper divisors (56142947).

121652125 is an equidigital number, since it uses as much as digits as its factorization.

121652125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454 (or 3444 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 121652125 is about 11029.6022140420. The cubic root of 121652125 is about 495.4957112806.

The spelling of 121652125 in words is "one hundred twenty-one million, six hundred fifty-two thousand, one hundred twenty-five".