106621546 has 4 divisors (see below), whose sum is σ = 159932322. Its totient is φ = 53310772.

The previous prime is 106621523. The next prime is 106621549. The reversal of 106621546 is 645126601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 104960025 + 1661521 = 10245^2 + 1289^2 .

It is a super-2 number, since 2×106621546² = 22736308142860232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (106621549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26655385 + ... + 26655388.

Almost surely, 2^106621546 is an apocalyptic number.

106621546 is a deficient number, since it is larger than the sum of its proper divisors (53310776).

106621546 is an equidigital number, since it uses as much as digits as its factorization.

106621546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53310775.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 106621546 is about 10325.7709639523. The cubic root of 106621546 is about 474.1855605854.

The spelling of 106621546 in words is "one hundred six million, six hundred twenty-one thousand, five hundred forty-six".