121540352 has 36 divisors (see below), whose sum is σ = 243808320. Its totient is φ = 60469248.

The previous prime is 121540351. The next prime is 121540357. The reversal of 121540352 is 253045121.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121540351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56024 + ... + 58152.

Almost surely, 2^121540352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121540352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121904160).

121540352 is an abundant number, since it is smaller than the sum of its proper divisors (122267968).

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

121540352 is an equidigital number, since it uses as much as digits as its factorization.

121540352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2354 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 121540352 is about 11024.5340944640. The cubic root of 121540352 is about 495.3439122810.

Adding to 121540352 its reverse (253045121), we get a palindrome (374585473).

The spelling of 121540352 in words is "one hundred twenty-one million, five hundred forty thousand, three hundred fifty-two".