121325646 has 32 divisors (see below), whose sum is σ = 261844128. Its totient is φ = 37255680.

The previous prime is 121325569. The next prime is 121325669. The reversal of 121325646 is 646523121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46866 + ... + 49386.

It is an arithmetic number, because the mean of its divisors is an integer number (8182629).

Almost surely, 2^121325646 is an apocalyptic number.

121325646 is an abundant number, since it is smaller than the sum of its proper divisors (140518482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121325646 is a wasteful number, since it uses less digits than its factorization.

121325646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156.

The product of its digits is 8640, while the sum is 30.

The square root of 121325646 is about 11014.7921451110. The cubic root of 121325646 is about 495.0520586000.

Adding to 121325646 its reverse (646523121), we get a palindrome (767848767).

The spelling of 121325646 in words is "one hundred twenty-one million, three hundred twenty-five thousand, six hundred forty-six".