10381261 has 4 divisors (see below), whose sum is σ = 11325024. Its totient is φ = 9437500.

The previous prime is 10381229. The next prime is 10381279. The reversal of 10381261 is 16218301.

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 10381261 - 2⁵ = 10381229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10381291) 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, 471865 + ... + 471886.

It is an arithmetic number, because the mean of its divisors is an integer number (2831256).

Almost surely, 2^10381261 is an apocalyptic number.

10381261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10381261 is a deficient number, since it is larger than the sum of its proper divisors (943763).

10381261 is an equidigital number, since it uses as much as digits as its factorization.

10381261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943762.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 10381261 is about 3221.9964307864. The cubic root of 10381261 is about 218.1473977214.

Adding to 10381261 its reverse (16218301), we get a palindrome (26599562).

The spelling of 10381261 in words is "ten million, three hundred eighty-one thousand, two hundred sixty-one".