10121245 has 4 divisors (see below), whose sum is σ = 12145500. Its totient is φ = 8096992.

The previous prime is 10121233. The next prime is 10121257. The reversal of 10121245 is 54212101.

10121245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54212101 = 5449 ⋅9949.

It is an interprime number because it is at equal distance from previous prime (10121233) and next prime (10121257).

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 8637721 = 1218^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121245 - 2⁷ = 10121117 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1012120 + ... + 1012129.

It is an arithmetic number, because the mean of its divisors is an integer number (3036375).

Almost surely, 2^10121245 is an apocalyptic number.

It is an amenable number.

10121245 is a deficient number, since it is larger than the sum of its proper divisors (2024255).

10121245 is an equidigital number, since it uses as much as digits as its factorization.

10121245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024254.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 10121245 is about 3181.3904192978. The cubic root of 10121245 is about 216.3106883028.

Adding to 10121245 its reverse (54212101), we get a palindrome (64333346).

The spelling of 10121245 in words is "ten million, one hundred twenty-one thousand, two hundred forty-five".