10158381 has 12 divisors (see below), whose sum is σ = 15179580. Its totient is φ = 6538560.

The previous prime is 10158329. The next prime is 10158383. The reversal of 10158381 is 18385101.

10158381 is a `hidden beast` number, since 1 + 0 + 1 + 583 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1602756 + 8555625 = 1266^2 + 2925^2 .

It is not a de Polignac number, because 10158381 - 2¹⁴ = 10141997 is a prime.

It is a super-2 number, since 2×10158381² = 206385409082322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10158383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19200 + ... + 19721.

It is an arithmetic number, because the mean of its divisors is an integer number (1264965).

Almost surely, 2^10158381 is an apocalyptic number.

It is an amenable number.

10158381 is a deficient number, since it is larger than the sum of its proper divisors (5021199).

10158381 is a wasteful number, since it uses less digits than its factorization.

10158381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38956 (or 38953 counting only the distinct ones).

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

The square root of 10158381 is about 3187.2215172466. The cubic root of 10158381 is about 216.5749215778.

The spelling of 10158381 in words is "ten million, one hundred fifty-eight thousand, three hundred eighty-one".