10145405 has 4 divisors (see below), whose sum is σ = 12174492. Its totient is φ = 8116320.

The previous prime is 10145383. The next prime is 10145407. The reversal of 10145405 is 50454101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50454101 = 19 ⋅2655479.

It can be written as a sum of positive squares in 2 ways, for example, as 7166329 + 2979076 = 2677^2 + 1726^2 .

It is not a de Polignac number, because 10145405 - 2¹⁶ = 10079869 is a prime.

It is a super-2 number, since 2×10145405² = 205858485228050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10145407) 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, 1014536 + ... + 1014545.

It is an arithmetic number, because the mean of its divisors is an integer number (3043623).

Almost surely, 2^10145405 is an apocalyptic number.

It is an amenable number.

10145405 is a deficient number, since it is larger than the sum of its proper divisors (2029087).

10145405 is an equidigital number, since it uses as much as digits as its factorization.

10145405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029086.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 10145405 is about 3185.1852379414. The cubic root of 10145405 is about 216.4826669289.

Adding to 10145405 its reverse (50454101), we get a palindrome (60599506).

The spelling of 10145405 in words is "ten million, one hundred forty-five thousand, four hundred five".