121645052 has 12 divisors (see below), whose sum is σ = 212956800. Its totient is φ = 60800256.

The previous prime is 121645037. The next prime is 121645057. The reversal of 121645052 is 250546121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121645057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16028 + ... + 22364.

It is an arithmetic number, because the mean of its divisors is an integer number (17746400).

Almost surely, 2^121645052 is an apocalyptic number.

It is an amenable number.

121645052 is a deficient number, since it is larger than the sum of its proper divisors (91311748).

121645052 is a wasteful number, since it uses less digits than its factorization.

121645052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140 (or 11138 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 121645052 is about 11029.2815722512. The cubic root of 121645052 is about 495.4861081902.

The spelling of 121645052 in words is "one hundred twenty-one million, six hundred forty-five thousand, fifty-two".