105313145 has 32 divisors (see below), whose sum is σ = 148490496. Its totient is φ = 70214400.

The previous prime is 105313141. The next prime is 105313151. The reversal of 105313145 is 541313501.

It is not a de Polignac number, because 105313145 - 2² = 105313141 is a prime.

It is a super-2 number, since 2×105313145² = 22181717019582050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105313145.

It is not an unprimeable number, because it can be changed into a prime (105313141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228215 + ... + 228675.

It is an arithmetic number, because the mean of its divisors is an integer number (4640328).

Almost surely, 2^105313145 is an apocalyptic number.

It is an amenable number.

105313145 is a deficient number, since it is larger than the sum of its proper divisors (43177351).

105313145 is a wasteful number, since it uses less digits than its factorization.

105313145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 105313145 is about 10262.2193018859. The cubic root of 105313145 is about 472.2379237737.

Adding to 105313145 its reverse (541313501), we get a palindrome (646626646).

The spelling of 105313145 in words is "one hundred five million, three hundred thirteen thousand, one hundred forty-five".