10381145 has 4 divisors (see below), whose sum is σ = 12457380. Its totient is φ = 8304912.

The previous prime is 10381141. The next prime is 10381171. The reversal of 10381145 is 54118301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54118301 = 1097 ⋅49333.

It can be written as a sum of positive squares in 2 ways, for example, as 7198489 + 3182656 = 2683^2 + 1784^2 .

It is a cyclic number.

It is not a de Polignac number, because 10381145 - 2² = 10381141 is a prime.

It is a super-2 number, since 2×10381145² = 215536343022050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10381145.

It is not an unprimeable number, because it can be changed into a prime (10381141) 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, 1038110 + ... + 1038119.

It is an arithmetic number, because the mean of its divisors is an integer number (3114345).

Almost surely, 2^10381145 is an apocalyptic number.

It is an amenable number.

10381145 is a deficient number, since it is larger than the sum of its proper divisors (2076235).

10381145 is an equidigital number, since it uses as much as digits as its factorization.

10381145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076234.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 10381145 is about 3221.9784294747. The cubic root of 10381145 is about 218.1465851935.

Adding to 10381145 its reverse (54118301), we get a palindrome (64499446).

The spelling of 10381145 in words is "ten million, three hundred eighty-one thousand, one hundred forty-five".