121652628 has 12 divisors (see below), whose sum is σ = 283856160. Its totient is φ = 40550872.

The previous prime is 121652627. The next prime is 121652677. The reversal of 121652628 is 826256121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121652621) 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, 5068848 + ... + 5068871.

It is an arithmetic number, because the mean of its divisors is an integer number (23654680).

Almost surely, 2^121652628 is an apocalyptic number.

It is an amenable number.

121652628 is an abundant number, since it is smaller than the sum of its proper divisors (162203532).

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

121652628 is a wasteful number, since it uses less digits than its factorization.

121652628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10137726 (or 10137724 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 121652628 is about 11029.6250162914. The cubic root of 121652628 is about 495.4963941951.

The spelling of 121652628 in words is "one hundred twenty-one million, six hundred fifty-two thousand, six hundred twenty-eight".