121502 has 8 divisors (see below), whose sum is σ = 184800. Its totient is φ = 59904.

The previous prime is 121501. The next prime is 121507. The reversal of 121502 is 205121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 542.

It is an arithmetic number, because the mean of its divisors is an integer number (23100).

2¹²¹⁵⁰² is an apocalyptic number.

121502 is a deficient number, since it is larger than the sum of its proper divisors (63298).

121502 is an equidigital number, since it uses as much as digits as its factorization.

121502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 121502 is about 348.5713700234. The cubic root of 121502 is about 49.5291804955.

Adding to 121502 its reverse (205121), we get a palindrome (326623).

The spelling of 121502 in words is "one hundred twenty-one thousand, five hundred two".