105878445 has 16 divisors (see below), whose sum is σ = 170488320. Its totient is φ = 56107584.

The previous prime is 105878429. The next prime is 105878447. The reversal of 105878445 is 544878501.

It is not a de Polignac number, because 105878445 - 2⁴ = 105878429 is a prime.

It is a super-2 number, since 2×105878445² = 22420490231236050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105878397 and 105878406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105878447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20125 + ... + 24834.

It is an arithmetic number, because the mean of its divisors is an integer number (10655520).

Almost surely, 2^105878445 is an apocalyptic number.

105878445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105878445 is a deficient number, since it is larger than the sum of its proper divisors (64609875).

105878445 is a wasteful number, since it uses less digits than its factorization.

105878445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45124.

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 105878445 is about 10289.7252149900. The cubic root of 105878445 is about 473.0813761332.

The spelling of 105878445 in words is "one hundred five million, eight hundred seventy-eight thousand, four hundred forty-five".