10121249 has 4 divisors (see below), whose sum is σ = 10166064. Its totient is φ = 10076436.

The previous prime is 10121233. The next prime is 10121257. The reversal of 10121249 is 94212101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10121249 - 2⁴ = 10121233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10121249.

It is not an unprimeable number, because it can be changed into a prime (10121299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22067 + ... + 22520.

It is an arithmetic number, because the mean of its divisors is an integer number (2541516).

Almost surely, 2^10121249 is an apocalyptic number.

It is an amenable number.

10121249 is a deficient number, since it is larger than the sum of its proper divisors (44815).

10121249 is an equidigital number, since it uses as much as digits as its factorization.

10121249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44814.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 10121249 is about 3181.3910479537. The cubic root of 10121249 is about 216.3107167988.

The spelling of 10121249 in words is "ten million, one hundred twenty-one thousand, two hundred forty-nine".