121600425 has 48 divisors (see below), whose sum is σ = 211593600. Its totient is φ = 61501440.

The previous prime is 121600411. The next prime is 121600447. The reversal of 121600425 is 524006121.

It is not a de Polignac number, because 121600425 - 2⁸ = 121600169 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270601 + ... + 271049.

It is an arithmetic number, because the mean of its divisors is an integer number (4408200).

Almost surely, 2^121600425 is an apocalyptic number.

121600425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121600425 is a deficient number, since it is larger than the sum of its proper divisors (89993175).

121600425 is a wasteful number, since it uses less digits than its factorization.

121600425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 121600425 is about 11027.2582721182. The cubic root of 121600425 is about 495.4255090323.

Adding to 121600425 its reverse (524006121), we get a palindrome (645606546).

The spelling of 121600425 in words is "one hundred twenty-one million, six hundred thousand, four hundred twenty-five".