121453825 has 12 divisors (see below), whose sum is σ = 151240320. Its totient is φ = 96751760.

The previous prime is 121453819. The next prime is 121453841. The reversal of 121453825 is 528354121.

It is not a de Polignac number, because 121453825 - 2⁹ = 121453313 is a prime.

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, 4189 + ... + 16138.

It is an arithmetic number, because the mean of its divisors is an integer number (12603360).

Almost surely, 2^121453825 is an apocalyptic number.

It is an amenable number.

121453825 is a deficient number, since it is larger than the sum of its proper divisors (29786495).

121453825 is a wasteful number, since it uses less digits than its factorization.

121453825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20576 (or 20571 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 121453825 is about 11020.6091029489. The cubic root of 121453825 is about 495.2263359723.

The spelling of 121453825 in words is "one hundred twenty-one million, four hundred fifty-three thousand, eight hundred twenty-five".