10381945 has 8 divisors (see below), whose sum is σ = 14238144. Its totient is φ = 7119024.

The previous prime is 10381933. The next prime is 10381949. The reversal of 10381945 is 54918301.

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

It is a cyclic number.

It is not a de Polignac number, because 10381945 - 2¹⁵ = 10349177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10381949) 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, 148279 + ... + 148348.

It is an arithmetic number, because the mean of its divisors is an integer number (1779768).

Almost surely, 2^10381945 is an apocalyptic number.

It is an amenable number.

10381945 is a deficient number, since it is larger than the sum of its proper divisors (3856199).

10381945 is an equidigital number, since it uses as much as digits as its factorization.

10381945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296639.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 10381945 is about 3222.1025744070. The cubic root of 10381945 is about 218.1521887111.

The spelling of 10381945 in words is "ten million, three hundred eighty-one thousand, nine hundred forty-five".