121499352 has 80 divisors (see below), whose sum is σ = 366513840. Its totient is φ = 37381824.

The previous prime is 121499309. The next prime is 121499353. The reversal of 121499352 is 253994121.

121499352 is a `hidden beast` number, since 1 + 214 + 99 + 352 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121499353) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1213 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (4581423).

Almost surely, 2^121499352 is an apocalyptic number.

121499352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121499352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183256920).

121499352 is an abundant number, since it is smaller than the sum of its proper divisors (245014488).

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

121499352 is a wasteful number, since it uses less digits than its factorization.

121499352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14454 (or 14441 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 121499352 is about 11022.6744486082. The cubic root of 121499352 is about 495.2882068187.

The spelling of 121499352 in words is "one hundred twenty-one million, four hundred ninety-nine thousand, three hundred fifty-two".