105413945 has 48 divisors (see below), whose sum is σ = 165473280. Its totient is φ = 63778176.

The previous prime is 105413929. The next prime is 105413953. The reversal of 105413945 is 549314501.

It is not a de Polignac number, because 105413945 - 2⁴ = 105413929 is a prime.

It is a super-2 number, since 2×105413945² = 22224199600926050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72536 + ... + 73974.

It is an arithmetic number, because the mean of its divisors is an integer number (3447360).

Almost surely, 2^105413945 is an apocalyptic number.

It is an amenable number.

105413945 is a deficient number, since it is larger than the sum of its proper divisors (60059335).

105413945 is a wasteful number, since it uses less digits than its factorization.

105413945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 105413945 is about 10267.1293456350. The cubic root of 105413945 is about 472.3885425262.

The spelling of 105413945 in words is "one hundred five million, four hundred thirteen thousand, nine hundred forty-five".