121795725 has 12 divisors (see below), whose sum is σ = 201369056. Its totient is φ = 64957680.

The previous prime is 121795693. The next prime is 121795727. The reversal of 121795725 is 527597121.

It is a happy number.

It is not a de Polignac number, because 121795725 - 2⁵ = 121795693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121795727) 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, 811897 + ... + 812046.

Almost surely, 2^121795725 is an apocalyptic number.

121795725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121795725 is a deficient number, since it is larger than the sum of its proper divisors (79573331).

121795725 is a wasteful number, since it uses less digits than its factorization.

121795725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623956 (or 1623951 counting only the distinct ones).

The product of its digits is 44100, while the sum is 39.

The square root of 121795725 is about 11036.1100483821. The cubic root of 121795725 is about 495.6905981510.

The spelling of 121795725 in words is "one hundred twenty-one million, seven hundred ninety-five thousand, seven hundred twenty-five".