10207281 has 8 divisors (see below), whose sum is σ = 15553984. Its totient is φ = 5832720.

The previous prime is 10207273. The next prime is 10207283. The reversal of 10207281 is 18270201.

10207281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10207281 - 2³ = 10207273 is a prime.

It is a super-2 number, since 2×10207281² = 208377170825922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 486061 = 10207281 / (1 + 0 + 2 + 0 + 7 + 2 + 8 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10207283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243010 + ... + 243051.

It is an arithmetic number, because the mean of its divisors is an integer number (1944248).

Almost surely, 2^10207281 is an apocalyptic number.

It is an amenable number.

10207281 is a deficient number, since it is larger than the sum of its proper divisors (5346703).

10207281 is an equidigital number, since it uses as much as digits as its factorization.

10207281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486071.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 10207281 is about 3194.8835659535. The cubic root of 10207281 is about 216.9218786232.

Adding to 10207281 its reverse (18270201), we get a palindrome (28477482).

The spelling of 10207281 in words is "ten million, two hundred seven thousand, two hundred eighty-one".