121245652 has 24 divisors (see below), whose sum is σ = 233769312. Its totient is φ = 54564000.

The previous prime is 121245637. The next prime is 121245697. The reversal of 121245652 is 256542121.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 121245652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9198 + ... + 18085.

It is an arithmetic number, because the mean of its divisors is an integer number (9740388).

Almost surely, 2^121245652 is an apocalyptic number.

It is an amenable number.

121245652 is a deficient number, since it is larger than the sum of its proper divisors (112523660).

121245652 is a wasteful number, since it uses less digits than its factorization.

121245652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27399 (or 27397 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 121245652 is about 11011.1603384929. The cubic root of 121245652 is about 494.9432332957.

Adding to 121245652 its reverse (256542121), we get a palindrome (377787773).

It can be divided in two parts, 1212 and 45652, that added together give a palindrome (46864).

The spelling of 121245652 in words is "one hundred twenty-one million, two hundred forty-five thousand, six hundred fifty-two".