121230245 has 4 divisors (see below), whose sum is σ = 145476300. Its totient is φ = 96984192.

The previous prime is 121230233. The next prime is 121230253. The reversal of 121230245 is 542032121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82864609 + 38365636 = 9103^2 + 6194^2 .

It is a cyclic number.

It is not a de Polignac number, because 121230245 - 2¹⁰ = 121229221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12123020 + ... + 12123029.

It is an arithmetic number, because the mean of its divisors is an integer number (36369075).

Almost surely, 2^121230245 is an apocalyptic number.

It is an amenable number.

121230245 is a deficient number, since it is larger than the sum of its proper divisors (24246055).

121230245 is an equidigital number, since it uses as much as digits as its factorization.

121230245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24246054.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121230245 is about 11010.4607078905. The cubic root of 121230245 is about 494.9222678334.

Adding to 121230245 its reverse (542032121), we get a palindrome (663262366).

The spelling of 121230245 in words is "one hundred twenty-one million, two hundred thirty thousand, two hundred forty-five".