105378725 has 12 divisors (see below), whose sum is σ = 131091684. Its totient is φ = 84030720.

The previous prime is 105378719. The next prime is 105378737. The reversal of 105378725 is 527873501.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 51825601 + 53553124 = 7199^2 + 7318^2 .

It is a de Polignac number, because none of the positive numbers 2^k-105378725 is a prime.

It is a super-2 number, since 2×105378725² = 22209351365251250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1277 + ... + 14573.

It is an arithmetic number, because the mean of its divisors is an integer number (10924307).

Almost surely, 2^105378725 is an apocalyptic number.

It is an amenable number.

105378725 is a deficient number, since it is larger than the sum of its proper divisors (25712959).

105378725 is a wasteful number, since it uses less digits than its factorization.

105378725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13624 (or 13619 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 105378725 is about 10265.4140199020. The cubic root of 105378725 is about 472.3359265346.

It can be divided in two parts, 10 and 5378725, that added together give a palindrome (5378735).

The spelling of 105378725 in words is "one hundred five million, three hundred seventy-eight thousand, seven hundred twenty-five".