10185381 has 24 divisors (see below), whose sum is σ = 15196896. Its totient is φ = 6570720.

The previous prime is 10185379. The next prime is 10185401. The reversal of 10185381 is 18358101.

It is not a de Polignac number, because 10185381 - 2¹ = 10185379 is a prime.

It is a super-2 number, since 2×10185381² = 207483972230322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10184381) 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 23 ways as a sum of consecutive naturals, for example, 62406 + ... + 62568.

It is an arithmetic number, because the mean of its divisors is an integer number (633204).

Almost surely, 2^10185381 is an apocalyptic number.

It is an amenable number.

10185381 is a deficient number, since it is larger than the sum of its proper divisors (5011515).

10185381 is a wasteful number, since it uses less digits than its factorization.

10185381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 10185381 is about 3191.4543706592. The cubic root of 10185381 is about 216.7666302698.

The spelling of 10185381 in words is "ten million, one hundred eighty-five thousand, three hundred eighty-one".