121533652 has 24 divisors (see below), whose sum is σ = 229090400. Its totient is φ = 56228256.

The previous prime is 121533637. The next prime is 121533653. The reversal of 121533652 is 256335121.

It is a self number, because there is not a number n which added to its sum of digits gives 121533652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121533653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15327 + ... + 21862.

Almost surely, 2^121533652 is an apocalyptic number.

It is an amenable number.

121533652 is a deficient number, since it is larger than the sum of its proper divisors (107556748).

121533652 is a wasteful number, since it uses less digits than its factorization.

121533652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37255 (or 37253 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 121533652 is about 11024.2302225598. The cubic root of 121533652 is about 495.3348100497.

Adding to 121533652 its reverse (256335121), we get a palindrome (377868773).

The spelling of 121533652 in words is "one hundred twenty-one million, five hundred thirty-three thousand, six hundred fifty-two".