121424925 has 24 divisors (see below), whose sum is σ = 203022720. Its totient is φ = 64028800.

The previous prime is 121424911. The next prime is 121424951. The reversal of 121424925 is 529424121.

It is not a de Polignac number, because 121424925 - 2⁴ = 121424909 is a prime.

It is a super-2 number, since 2×121424925² = 29488024822511250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121424892 and 121424901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2421 + ... + 15770.

It is an arithmetic number, because the mean of its divisors is an integer number (8459280).

Almost surely, 2^121424925 is an apocalyptic number.

121424925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121424925 is a deficient number, since it is larger than the sum of its proper divisors (81597795).

121424925 is a wasteful number, since it uses less digits than its factorization.

121424925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18293 (or 18288 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 121424925 is about 11019.2978451442. The cubic root of 121424925 is about 495.1870530694.

The spelling of 121424925 in words is "one hundred twenty-one million, four hundred twenty-four thousand, nine hundred twenty-five".