10278121 has 8 divisors (see below), whose sum is σ = 11777024. Its totient is φ = 8786880.

The previous prime is 10278109. The next prime is 10278133. The reversal of 10278121 is 12187201.

It is an interprime number because it is at equal distance from previous prime (10278109) and next prime (10278133).

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

It is a cyclic number.

It is not a de Polignac number, because 10278121 - 2⁵ = 10278089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10278092 and 10278101.

It is not an unprimeable number, because it can be changed into a prime (10275121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336 + ... + 4726.

It is an arithmetic number, because the mean of its divisors is an integer number (1472128).

Almost surely, 2^10278121 is an apocalyptic number.

It is an amenable number.

10278121 is a deficient number, since it is larger than the sum of its proper divisors (1498903).

10278121 is an equidigital number, since it uses as much as digits as its factorization.

10278121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 10278121 is about 3205.9508729860. The cubic root of 10278121 is about 217.4225451954.

The spelling of 10278121 in words is "ten million, two hundred seventy-eight thousand, one hundred twenty-one".