121596825 has 24 divisors (see below), whose sum is σ = 229761088. Its totient is φ = 55586880.

The previous prime is 121596823. The next prime is 121596841. The reversal of 121596825 is 528695121.

It is not a de Polignac number, because 121596825 - 2¹ = 121596823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121596821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115282 + ... + 116331.

Almost surely, 2^121596825 is an apocalyptic number.

121596825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121596825 is a deficient number, since it is larger than the sum of its proper divisors (108164263).

121596825 is a wasteful number, since it uses less digits than its factorization.

121596825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231633 (or 231628 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 121596825 is about 11027.0950390391. The cubic root of 121596825 is about 495.4206199336.

The spelling of 121596825 in words is "one hundred twenty-one million, five hundred ninety-six thousand, eight hundred twenty-five".