105621794 has 8 divisors (see below), whose sum is σ = 159589548. Its totient is φ = 52425280.

The previous prime is 105621793. The next prime is 105621821. The reversal of 105621794 is 497126501.

It can be written as a sum of positive squares in 2 ways, for example, as 100500625 + 5121169 = 10025^2 + 2263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105621794² = 22311926735556872, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105621793) 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, 192467 + ... + 193014.

Almost surely, 2^105621794 is an apocalyptic number.

105621794 is a deficient number, since it is larger than the sum of its proper divisors (53967754).

105621794 is a wasteful number, since it uses less digits than its factorization.

105621794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385620.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 105621794 is about 10277.2464210994. The cubic root of 105621794 is about 472.6988146465.

The spelling of 105621794 in words is "one hundred five million, six hundred twenty-one thousand, seven hundred ninety-four".